android: Add draw completion for CompositorView

chrome/browser/android/compositor/compositor_view.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_ANDROID_COMPOSITOR_COMPOSITOR_VIEW_H_
 #define CHROME_BROWSER_ANDROID_COMPOSITOR_COMPOSITOR_VIEW_H_
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
@@ skipping 61 matching lines @@
   void SetOverlayVideoMode(JNIEnv* env,
                            const base::android::JavaParamRef<jobject>& object,
                            bool enabled);
   void SetSceneLayer(JNIEnv* env,
                      const base::android::JavaParamRef<jobject>& object,
                      const base::android::JavaParamRef<jobject>& jscene_layer);
 
   // CompositorClient implementation:
   void UpdateLayerTreeHost() override;
   void DidSwapFrame(int pending_frames) override;
+  void DidSwapBuffers() override;
   ui::UIResourceProvider* GetUIResourceProvider();
 
  private:
   ~CompositorView() override;
 
   // content::BrowserChildProcessObserver implementation:
   void BrowserChildProcessHostDisconnected(
       const content::ChildProcessData& data) override;
   void BrowserChildProcessCrashed(const content::ChildProcessData& data,
                                   int exit_code) override;
@@ skipping 16 matching lines @@
   base::WeakPtrFactory<CompositorView> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorView);
 };
 
 bool RegisterCompositorView(JNIEnv* env);
 
 }  // namespace android
 
 #endif  // CHROME_BROWSER_ANDROID_COMPOSITOR_COMPOSITOR_VIEW_H_