Accessibility text changed event text not populated.

Added the TYPE_VIEW_TEXT_CHANGED event to the populating events.

bug:5430831

Change-Id: I78e87640ea4279227d89f399ad43e9b88eb4a486
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 15544cc..7f3c08c 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -1486,7 +1486,8 @@
             | AccessibilityEvent.TYPE_VIEW_FOCUSED
             | AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
             | AccessibilityEvent.TYPE_VIEW_HOVER_ENTER
-            | AccessibilityEvent.TYPE_VIEW_HOVER_EXIT;
+            | AccessibilityEvent.TYPE_VIEW_HOVER_EXIT
+            | AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED;
 
     /**
      * Temporary Rect currently for use in setBackground().  This will probably
diff --git a/core/java/android/view/accessibility/AccessibilityEvent.java b/core/java/android/view/accessibility/AccessibilityEvent.java
index 25bc559..86dd9df 100644
--- a/core/java/android/view/accessibility/AccessibilityEvent.java
+++ b/core/java/android/view/accessibility/AccessibilityEvent.java
@@ -200,15 +200,6 @@
  *   <li>{@link #getBeforeText()} - The text of the source before the change.</li>
  *   <li>{@link #getContentDescription()} - The content description of the source.</li>
  * </ul>
- * <em>Note:</em> This event type is not dispatched to descendants though
- * {@link android.view.View#dispatchPopulateAccessibilityEvent(AccessibilityEvent)
- * View.dispatchPopulateAccessibilityEvent(AccessibilityEvent)}, hence the event
- * source {@link android.view.View} and the sub-tree rooted at it will not receive
- * calls to {@link android.view.View#onPopulateAccessibilityEvent(AccessibilityEvent)
- * View.onPopulateAccessibilityEvent(AccessibilityEvent)}. The preferred way to add
- * text content to such events is by setting the
- * {@link android.R.styleable#View_contentDescription contentDescription} of the source
- * view.</br>
  * </p>
  * <p>
  * <b>View text selection changed</b> - represents the event of changing the text