diff --git a/core/java/android/database/sqlite/SQLiteDatabase.java b/core/java/android/database/sqlite/SQLiteDatabase.java
index 6adae25..96cd043 100644
--- a/core/java/android/database/sqlite/SQLiteDatabase.java
+++ b/core/java/android/database/sqlite/SQLiteDatabase.java
@@ -1748,7 +1748,8 @@
         executeSql(sql, bindArgs);
     }
 
-    private int executeSql(String sql, Object[] bindArgs) throws SQLException {
+    /** {@hide} */
+    public int executeSql(String sql, Object[] bindArgs) throws SQLException {
         acquireReference();
         try {
             final int statementType = DatabaseUtils.getSqlStatementType(sql);
diff --git a/core/java/android/database/sqlite/SQLiteQueryBuilder.java b/core/java/android/database/sqlite/SQLiteQueryBuilder.java
index c6c676f..442e4cf 100644
--- a/core/java/android/database/sqlite/SQLiteQueryBuilder.java
+++ b/core/java/android/database/sqlite/SQLiteQueryBuilder.java
@@ -16,17 +16,25 @@
 
 package android.database.sqlite;
 
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.ContentValues;
 import android.database.Cursor;
 import android.database.DatabaseUtils;
+import android.os.Build;
 import android.os.CancellationSignal;
 import android.os.OperationCanceledException;
 import android.provider.BaseColumns;
 import android.text.TextUtils;
 import android.util.Log;
 
+import libcore.util.EmptyArray;
+
+import java.util.Arrays;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.Objects;
 import java.util.Set;
 import java.util.regex.Pattern;
 
@@ -95,9 +103,6 @@
         if (mWhereClause == null) {
             mWhereClause = new StringBuilder(inWhere.length() + 16);
         }
-        if (mWhereClause.length() == 0) {
-            mWhereClause.append('(');
-        }
         mWhereClause.append(inWhere);
     }
 
@@ -115,9 +120,6 @@
         if (mWhereClause == null) {
             mWhereClause = new StringBuilder(inWhere.length() + 16);
         }
-        if (mWhereClause.length() == 0) {
-            mWhereClause.append('(');
-        }
         DatabaseUtils.appendEscapedSQLString(mWhereClause, inWhere);
     }
 
@@ -376,6 +378,11 @@
             return null;
         }
 
+        final String sql;
+        final String unwrappedSql = buildQuery(
+                projectionIn, selection, groupBy, having,
+                sortOrder, limit);
+
         if (mStrict && selection != null && selection.length() > 0) {
             // Validate the user-supplied selection to detect syntactic anomalies
             // in the selection string that could indicate a SQL injection attempt.
@@ -384,25 +391,167 @@
             // originally specified. An attacker cannot create an expression that
             // would escape the SQL expression while maintaining balanced parentheses
             // in both the wrapped and original forms.
-            String sqlForValidation = buildQuery(projectionIn, "(" + selection + ")", groupBy,
+
+            // NOTE: The ordering of the below operations is important; we must
+            // execute the wrapped query to ensure the untrusted clause has been
+            // fully isolated.
+
+            // Validate the unwrapped query
+            db.validateSql(unwrappedSql, cancellationSignal); // will throw if query is invalid
+
+            // Execute wrapped query for extra protection
+            final String wrappedSql = buildQuery(projectionIn, wrap(selection), groupBy,
                     having, sortOrder, limit);
-            db.validateSql(sqlForValidation, cancellationSignal); // will throw if query is invalid
+            sql = wrappedSql;
+        } else {
+            // Execute unwrapped query
+            sql = unwrappedSql;
         }
 
-        String sql = buildQuery(
-                projectionIn, selection, groupBy, having,
-                sortOrder, limit);
-
+        final String[] sqlArgs = selectionArgs;
         if (Log.isLoggable(TAG, Log.DEBUG)) {
-            Log.d(TAG, "Performing query: " + sql);
+            if (Build.IS_DEBUGGABLE) {
+                Log.d(TAG, sql + " with args " + Arrays.toString(sqlArgs));
+            } else {
+                Log.d(TAG, sql);
+            }
         }
         return db.rawQueryWithFactory(
-                mFactory, sql, selectionArgs,
+                mFactory, sql, sqlArgs,
                 SQLiteDatabase.findEditTable(mTables),
                 cancellationSignal); // will throw if query is invalid
     }
 
     /**
+     * Perform an update by combining all current settings and the
+     * information passed into this method.
+     *
+     * @param db the database to update on
+     * @param selection A filter declaring which rows to return,
+     *   formatted as an SQL WHERE clause (excluding the WHERE
+     *   itself). Passing null will return all rows for the given URL.
+     * @param selectionArgs You may include ?s in selection, which
+     *   will be replaced by the values from selectionArgs, in order
+     *   that they appear in the selection. The values will be bound
+     *   as Strings.
+     * @return the number of rows updated
+     * @hide
+     */
+    public int update(@NonNull SQLiteDatabase db, @NonNull ContentValues values,
+            @Nullable String selection, @Nullable String[] selectionArgs) {
+        Objects.requireNonNull(mTables, "No tables defined");
+        Objects.requireNonNull(db, "No database defined");
+        Objects.requireNonNull(values, "No values defined");
+
+        final String sql;
+        final String unwrappedSql = buildUpdate(values, selection);
+
+        if (mStrict) {
+            // Validate the user-supplied selection to detect syntactic anomalies
+            // in the selection string that could indicate a SQL injection attempt.
+            // The idea is to ensure that the selection clause is a valid SQL expression
+            // by compiling it twice: once wrapped in parentheses and once as
+            // originally specified. An attacker cannot create an expression that
+            // would escape the SQL expression while maintaining balanced parentheses
+            // in both the wrapped and original forms.
+
+            // NOTE: The ordering of the below operations is important; we must
+            // execute the wrapped query to ensure the untrusted clause has been
+            // fully isolated.
+
+            // Validate the unwrapped query
+            db.validateSql(unwrappedSql, null); // will throw if query is invalid
+
+            // Execute wrapped query for extra protection
+            final String wrappedSql = buildUpdate(values, wrap(selection));
+            sql = wrappedSql;
+        } else {
+            // Execute unwrapped query
+            sql = unwrappedSql;
+        }
+
+        if (selectionArgs == null) {
+            selectionArgs = EmptyArray.STRING;
+        }
+        final String[] rawKeys = values.keySet().toArray(EmptyArray.STRING);
+        final int valuesLength = rawKeys.length;
+        final Object[] sqlArgs = new Object[valuesLength + selectionArgs.length];
+        for (int i = 0; i < sqlArgs.length; i++) {
+            if (i < valuesLength) {
+                sqlArgs[i] = values.get(rawKeys[i]);
+            } else {
+                sqlArgs[i] = selectionArgs[i - valuesLength];
+            }
+        }
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            if (Build.IS_DEBUGGABLE) {
+                Log.d(TAG, sql + " with args " + Arrays.toString(sqlArgs));
+            } else {
+                Log.d(TAG, sql);
+            }
+        }
+        return db.executeSql(sql, sqlArgs);
+    }
+
+    /**
+     * Perform a delete by combining all current settings and the
+     * information passed into this method.
+     *
+     * @param db the database to delete on
+     * @param selection A filter declaring which rows to return,
+     *   formatted as an SQL WHERE clause (excluding the WHERE
+     *   itself). Passing null will return all rows for the given URL.
+     * @param selectionArgs You may include ?s in selection, which
+     *   will be replaced by the values from selectionArgs, in order
+     *   that they appear in the selection. The values will be bound
+     *   as Strings.
+     * @return the number of rows deleted
+     * @hide
+     */
+    public int delete(@NonNull SQLiteDatabase db, @Nullable String selection,
+            @Nullable String[] selectionArgs) {
+        Objects.requireNonNull(mTables, "No tables defined");
+        Objects.requireNonNull(db, "No database defined");
+
+        final String sql;
+        final String unwrappedSql = buildDelete(selection);
+
+        if (mStrict) {
+            // Validate the user-supplied selection to detect syntactic anomalies
+            // in the selection string that could indicate a SQL injection attempt.
+            // The idea is to ensure that the selection clause is a valid SQL expression
+            // by compiling it twice: once wrapped in parentheses and once as
+            // originally specified. An attacker cannot create an expression that
+            // would escape the SQL expression while maintaining balanced parentheses
+            // in both the wrapped and original forms.
+
+            // NOTE: The ordering of the below operations is important; we must
+            // execute the wrapped query to ensure the untrusted clause has been
+            // fully isolated.
+
+            // Validate the unwrapped query
+            db.validateSql(unwrappedSql, null); // will throw if query is invalid
+
+            // Execute wrapped query for extra protection
+            final String wrappedSql = buildDelete(wrap(selection));
+            sql = wrappedSql;
+        } else {
+            // Execute unwrapped query
+            sql = unwrappedSql;
+        }
+
+        final String[] sqlArgs = selectionArgs;
+        if (Log.isLoggable(TAG, Log.DEBUG)) {
+            if (Build.IS_DEBUGGABLE) {
+                Log.d(TAG, sql + " with args " + Arrays.toString(sqlArgs));
+            } else {
+                Log.d(TAG, sql);
+            }
+        }
+        return db.executeSql(sql, sqlArgs);
+    }
+
+    /**
      * Construct a SELECT statement suitable for use in a group of
      * SELECT statements that will be joined through UNION operators
      * in buildUnionQuery.
@@ -434,28 +583,10 @@
             String[] projectionIn, String selection, String groupBy,
             String having, String sortOrder, String limit) {
         String[] projection = computeProjection(projectionIn);
-
-        StringBuilder where = new StringBuilder();
-        boolean hasBaseWhereClause = mWhereClause != null && mWhereClause.length() > 0;
-
-        if (hasBaseWhereClause) {
-            where.append(mWhereClause.toString());
-            where.append(')');
-        }
-
-        // Tack on the user's selection, if present.
-        if (selection != null && selection.length() > 0) {
-            if (hasBaseWhereClause) {
-                where.append(" AND ");
-            }
-
-            where.append('(');
-            where.append(selection);
-            where.append(')');
-        }
+        String where = computeWhere(selection);
 
         return buildQueryString(
-                mDistinct, mTables, projection, where.toString(),
+                mDistinct, mTables, projection, where,
                 groupBy, having, sortOrder, limit);
     }
 
@@ -472,6 +603,42 @@
         return buildQuery(projectionIn, selection, groupBy, having, sortOrder, limit);
     }
 
+    /** {@hide} */
+    public String buildUpdate(ContentValues values, String selection) {
+        if (values == null || values.size() == 0) {
+            throw new IllegalArgumentException("Empty values");
+        }
+
+        StringBuilder sql = new StringBuilder(120);
+        sql.append("UPDATE ");
+        sql.append(mTables);
+        sql.append(" SET ");
+
+        final String[] rawKeys = values.keySet().toArray(EmptyArray.STRING);
+        for (int i = 0; i < rawKeys.length; i++) {
+            if (i > 0) {
+                sql.append(',');
+            }
+            sql.append(rawKeys[i]);
+            sql.append("=?");
+        }
+
+        final String where = computeWhere(selection);
+        appendClause(sql, " WHERE ", where);
+        return sql.toString();
+    }
+
+    /** {@hide} */
+    public String buildDelete(String selection) {
+        StringBuilder sql = new StringBuilder(120);
+        sql.append("DELETE FROM ");
+        sql.append(mTables);
+
+        final String where = computeWhere(selection);
+        appendClause(sql, " WHERE ", where);
+        return sql.toString();
+    }
+
     /**
      * Construct a SELECT statement suitable for use in a group of
      * SELECT statements that will be joined through UNION operators
@@ -645,4 +812,37 @@
         }
         return null;
     }
+
+    private @Nullable String computeWhere(@Nullable String selection) {
+        final boolean hasInternal = !TextUtils.isEmpty(mWhereClause);
+        final boolean hasExternal = !TextUtils.isEmpty(selection);
+
+        if (hasInternal || hasExternal) {
+            final StringBuilder where = new StringBuilder();
+            if (hasInternal) {
+                where.append('(').append(mWhereClause).append(')');
+            }
+            if (hasInternal && hasExternal) {
+                where.append(" AND ");
+            }
+            if (hasExternal) {
+                where.append('(').append(selection).append(')');
+            }
+            return where.toString();
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Wrap given argument in parenthesis, unless it's {@code null} or
+     * {@code ()}, in which case return it verbatim.
+     */
+    private @Nullable String wrap(@Nullable String arg) {
+        if (TextUtils.isEmpty(arg)) {
+            return arg;
+        } else {
+            return "(" + arg + ")";
+        }
+    }
 }
diff --git a/core/java/android/text/Layout.java b/core/java/android/text/Layout.java
index 09af85d..c6f73cb 100644
--- a/core/java/android/text/Layout.java
+++ b/core/java/android/text/Layout.java
@@ -1583,7 +1583,8 @@
         }
 
         float get(final int offset) {
-            if (mHorizontals == null) {
+            if (mHorizontals == null || offset < mLineStartOffset
+                    || offset >= mLineStartOffset + mHorizontals.length) {
                 return getHorizontal(offset, mPrimary);
             } else {
                 return mHorizontals[offset - mLineStartOffset];
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 692d606..bbd2ca4 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -9626,10 +9626,17 @@
             }
         }
 
-        // If we're extending a persistable grant, then we always need to create
-        // the grant data structure so that take/release APIs work
+        // Figure out the value returned when access is allowed
+        final int allowedResult;
         if ((modeFlags & Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION) != 0) {
-            return targetUid;
+            // If we're extending a persistable grant, then we need to return
+            // "targetUid" so that we always create a grant data structure to
+            // support take/release APIs
+            allowedResult = targetUid;
+        } else {
+            // Otherwise, we can return "-1" to indicate that no grant data
+            // structures need to be created
+            allowedResult = -1;
         }
 
         if (targetUid >= 0) {
@@ -9638,7 +9645,7 @@
                 // No need to grant the target this permission.
                 if (DEBUG_URI_PERMISSION) Slog.v(TAG_URI_PERMISSION,
                         "Target " + targetPkg + " already has full permission to " + grantUri);
-                return -1;
+                return allowedResult;
             }
         } else {
             // First...  there is no target package, so can anyone access it?
@@ -9673,7 +9680,7 @@
                 }
             }
             if (allowed) {
-                return -1;
+                return allowedResult;
             }
         }
 
@@ -23039,6 +23046,7 @@
                 // The process is being computed, so there is a cycle. We cannot
                 // rely on this process's state.
                 app.containsCycle = true;
+
                 return false;
             }
         }
@@ -23063,6 +23071,7 @@
         final int logUid = mCurOomAdjUid;
 
         int prevAppAdj = app.curAdj;
+        int prevProcState = app.curProcState;
 
         if (app.maxAdj <= ProcessList.FOREGROUND_APP_ADJ) {
             // The max adjustment doesn't allow this app to be anything
@@ -23541,11 +23550,16 @@
                         ProcessRecord client = cr.binding.client;
                         computeOomAdjLocked(client, cachedAdj, TOP_APP, doingAll, now);
                         if (client.containsCycle) {
-                            // We've detected a cycle. We should ignore this connection and allow
-                            // this process to retry computeOomAdjLocked later in case a later-checked
-                            // connection from a client  would raise its priority legitimately.
+                            // We've detected a cycle. We should retry computeOomAdjLocked later in
+                            // case a later-checked connection from a client  would raise its
+                            // priority legitimately.
                             app.containsCycle = true;
-                            continue;
+                            // If the client has not been completely evaluated, skip using its
+                            // priority. Else use the conservative value for now and look for a
+                            // better state in the next iteration.
+                            if (client.completedAdjSeq < mAdjSeq) {
+                                continue;
+                            }
                         }
                         int clientAdj = client.curRawAdj;
                         int clientProcState = client.curProcState;
@@ -23768,11 +23782,16 @@
                 }
                 computeOomAdjLocked(client, cachedAdj, TOP_APP, doingAll, now);
                 if (client.containsCycle) {
-                    // We've detected a cycle. We should ignore this connection and allow
-                    // this process to retry computeOomAdjLocked later in case a later-checked
-                    // connection from a client  would raise its priority legitimately.
+                    // We've detected a cycle. We should retry computeOomAdjLocked later in
+                    // case a later-checked connection from a client  would raise its
+                    // priority legitimately.
                     app.containsCycle = true;
-                    continue;
+                    // If the client has not been completely evaluated, skip using its
+                    // priority. Else use the conservative value for now and look for a
+                    // better state in the next iteration.
+                    if (client.completedAdjSeq < mAdjSeq) {
+                        continue;
+                    }
                 }
                 int clientAdj = client.curRawAdj;
                 int clientProcState = client.curProcState;
@@ -24004,8 +24023,8 @@
         app.foregroundActivities = foregroundActivities;
         app.completedAdjSeq = mAdjSeq;
 
-        // if curAdj is less than prevAppAdj, then this process was promoted
-        return app.curAdj < prevAppAdj;
+        // if curAdj or curProcState improved, then this process was promoted
+        return app.curAdj < prevAppAdj || app.curProcState < prevProcState;
     }
 
     /**
@@ -25058,7 +25077,7 @@
         // - Continue retrying until no process was promoted.
         // - Iterate from least important to most important.
         int cycleCount = 0;
-        while (retryCycles) {
+        while (retryCycles && cycleCount < 10) {
             cycleCount++;
             retryCycles = false;
 
@@ -25073,12 +25092,14 @@
             for (int i=0; i<N; i++) {
                 ProcessRecord app = mLruProcesses.get(i);
                 if (!app.killedByAm && app.thread != null && app.containsCycle == true) {
+
                     if (computeOomAdjLocked(app, ProcessList.UNKNOWN_ADJ, TOP_APP, true, now)) {
                         retryCycles = true;
                     }
                 }
             }
         }
+
         for (int i=N-1; i>=0; i--) {
             ProcessRecord app = mLruProcesses.get(i);
             if (!app.killedByAm && app.thread != null) {