Change visibility of some classes/methods (6/n)

They don't have to be public since they are used internally inside
RollbackManager.

Bug: 150347230
Test: atest RollbackUnitTest RollbackStoreTest AppDataRollbackHelperTest
Test: atest RollbackTest StagedRollbackTest
Change-Id: I53dc2a613519a78d18ed7597c45af2ea7d5e774d
diff --git a/services/core/java/com/android/server/rollback/AppDataRollbackHelper.java b/services/core/java/com/android/server/rollback/AppDataRollbackHelper.java
index e76a49c..51f24c1 100644
--- a/services/core/java/com/android/server/rollback/AppDataRollbackHelper.java
+++ b/services/core/java/com/android/server/rollback/AppDataRollbackHelper.java
@@ -43,7 +43,7 @@
     private final Installer mInstaller;
     private final ApexManager mApexManager;
 
-    public AppDataRollbackHelper(Installer installer) {
+    AppDataRollbackHelper(Installer installer) {
         mInstaller = installer;
         mApexManager = ApexManager.getInstance();
     }
diff --git a/services/core/java/com/android/server/rollback/LocalIntentReceiver.java b/services/core/java/com/android/server/rollback/LocalIntentReceiver.java
index 504a349..f1726d7 100644
--- a/services/core/java/com/android/server/rollback/LocalIntentReceiver.java
+++ b/services/core/java/com/android/server/rollback/LocalIntentReceiver.java
@@ -41,7 +41,7 @@
         }
     };
 
-    public IntentSender getIntentSender() {
+    IntentSender getIntentSender() {
         return new IntentSender((IIntentSender) mLocalSender);
     }
 }
diff --git a/services/core/java/com/android/server/rollback/Rollback.java b/services/core/java/com/android/server/rollback/Rollback.java
index f0ee447..2827a3f 100644
--- a/services/core/java/com/android/server/rollback/Rollback.java
+++ b/services/core/java/com/android/server/rollback/Rollback.java
@@ -151,7 +151,7 @@
     /**
      * The user that performed the install with rollback enabled.
      */
-    public final int mUserId;
+    private final int mUserId;
 
     /**
      * The installer package name from the install session that enabled the rollback. May be null if
@@ -160,7 +160,7 @@
      * If this is an empty string then the installer package name will be resolved by
      * PackageManager.
      */
-    @Nullable public final String mInstallerPackageName;
+    @Nullable private final String mInstallerPackageName;
 
     /**
      * Session ids for all packages in the install. For multi-package sessions, this is the list
diff --git a/services/core/java/com/android/server/rollback/RollbackPackageHealthObserver.java b/services/core/java/com/android/server/rollback/RollbackPackageHealthObserver.java
index 24d46f1..21e6858 100644
--- a/services/core/java/com/android/server/rollback/RollbackPackageHealthObserver.java
+++ b/services/core/java/com/android/server/rollback/RollbackPackageHealthObserver.java
@@ -67,7 +67,7 @@
  *
  * @hide
  */
-public final class RollbackPackageHealthObserver implements PackageHealthObserver {
+final class RollbackPackageHealthObserver implements PackageHealthObserver {
     private static final String TAG = "RollbackPackageHealthObserver";
     private static final String NAME = "rollback-observer";
 
@@ -136,14 +136,14 @@
      * Start observing health of {@code packages} for {@code durationMs}.
      * This may cause {@code packages} to be rolled back if they crash too freqeuntly.
      */
-    public void startObservingHealth(List<String> packages, long durationMs) {
+    void startObservingHealth(List<String> packages, long durationMs) {
         PackageWatchdog.getInstance(mContext).startObservingHealth(this, packages, durationMs);
     }
 
     /** Verifies the rollback state after a reboot and schedules polling for sometime after reboot
      * to check for native crashes and mitigate them if needed.
      */
-    public void onBootCompletedAsync() {
+    void onBootCompletedAsync() {
         mHandler.post(()->onBootCompleted());
     }