[Chromoting] TouchInputHandler now listens to events in DesktopView

remoting/android/java/src/org/chromium/chromoting/DesktopViewInterface.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chromoting;
 
 import android.graphics.Point;
 
 import org.chromium.chromoting.jni.Client;
 
@@ skipping 20 matching lines @@
      * Informs the view that its transformation matrix (for rendering the remote desktop bitmap)
      * has been changed by the TouchInputHandler, which requires repainting.
      */
     void transformationChanged();
 
     /**
      * Starts or stops an animation. Whilst the animation is running, the DesktopView will
      * periodically call TouchInputHandler.processAnimation() and repaint itself.
      */
     void setAnimationEnabled(boolean enabled);
+
+    /** An {@link Event} which is triggered when the view is being painted. */
+    Event<PaintEventParameter> onPaint();
+
+    /** An {@link Event} which is triggered when the client size is changed. */
+    Event<SizeChangedEventParameter> onClientSizeChanged();
+
+    /** An {@link Event} which is triggered when the host size is changed. */
+    Event<SizeChangedEventParameter> onHostSizeChanged();
+
+    /** An {@link Event} which is triggered when user touchs the screen. */
+    Event<TouchEventParameter> onTouch();
 }