InputMethodManager showSoftInput return documentation.

Change-Id: I12b1fe6d224e1b44377fb9152a33a818b1974925
diff --git a/core/java/android/view/inputmethod/InputMethodManager.java b/core/java/android/view/inputmethod/InputMethodManager.java
index e30687f..adee260 100644
--- a/core/java/android/view/inputmethod/InputMethodManager.java
+++ b/core/java/android/view/inputmethod/InputMethodManager.java
@@ -16,6 +16,10 @@
 
 package android.view.inputmethod;
 
+import com.android.internal.os.HandlerCaller;
+import com.android.internal.view.IInputConnectionWrapper;
+import com.android.internal.view.InputBindResult;
+
 import android.content.Context;
 import android.graphics.Rect;
 import android.os.Bundle;
@@ -34,15 +38,6 @@
 import android.view.View;
 import android.view.ViewRoot;
 
-import com.android.internal.os.HandlerCaller;
-import com.android.internal.view.IInputConnectionWrapper;
-import com.android.internal.view.IInputContext;
-import com.android.internal.view.IInputMethodCallback;
-import com.android.internal.view.IInputMethodClient;
-import com.android.internal.view.IInputMethodManager;
-import com.android.internal.view.IInputMethodSession;
-import com.android.internal.view.InputBindResult;
-
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.util.List;
@@ -384,6 +379,7 @@
             super(mainLooper, conn);
         }
 
+        @Override
         public boolean isActive() {
             return mActive;
         }
@@ -739,6 +735,7 @@
      * code you receive may be either {@link #RESULT_UNCHANGED_SHOWN},
      * {@link #RESULT_UNCHANGED_HIDDEN}, {@link #RESULT_SHOWN}, or
      * {@link #RESULT_HIDDEN}.
+     * @return false if a problem occurred, true otherwise.
      */
     public boolean showSoftInput(View view, int flags,
             ResultReceiver resultReceiver) {