Bug 841507 - Mask events when removing composition; r=cpeterson

widget/android/nsWindow.cpp

@@ -1959,6 +1959,15 @@ nsWindow::OnIMEEvent(AndroidGeckoEvent *ae)
         break;
     case AndroidGeckoEvent::IME_REMOVE_COMPOSITION:
         {
+            /*
+             *  Remove any previous composition.  This is only used for
+             *    visual indication and does not affect the text content.
+             *
+             *  Selection and text updates are masked so the result of
+             *    temporary events are not passed on to Java
+             */
+            AutoIMEMask selMask(mIMEMaskSelectionUpdate);
+            AutoIMEMask textMask(mIMEMaskTextUpdate);
             RemoveIMEComposition();
             mIMERanges.Clear();
         }