Android: Consolidate and simplify VSync logic

content/browser/android/content_view_core_impl.h

 // Copyright 2012 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 CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 177 matching lines @@
                               jobject retained_object_set);
   void RemoveJavascriptInterface(JNIEnv* env, jobject obj, jstring name);
   int GetNavigationHistory(JNIEnv* env, jobject obj, jobject history);
   void GetDirectedNavigationHistory(JNIEnv* env,
                                     jobject obj,
                                     jobject history,
                                     jboolean is_forward,
                                     jint max_entries);
   base::android::ScopedJavaLocalRef<jstring>
       GetOriginalUrlForActiveNavigationEntry(JNIEnv* env, jobject obj);
-  void UpdateVSyncParameters(JNIEnv* env, jobject obj, jlong timebase_micros,
-                             jlong interval_micros);
-  void OnVSync(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);
-  jboolean OnAnimate(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);
   void WasResized(JNIEnv* env, jobject obj);
   jboolean IsRenderWidgetHostViewReady(JNIEnv* env, jobject obj);
   void ExitFullscreen(JNIEnv* env, jobject obj);
   void UpdateTopControlsState(JNIEnv* env,
                               jobject obj,
                               bool enable_hiding,
                               bool enable_showing,
                               bool animate);
   void ShowImeIfNeeded(JNIEnv* env, jobject obj);
 
@@ skipping 89 matching lines @@
   // Methods called from native code
   // --------------------------------------------------------------------------
 
   gfx::Size GetPhysicalBackingSize() const;
   gfx::Size GetViewportSizeDip() const;
   gfx::Size GetViewportSizeOffsetDip() const;
   float GetOverdrawBottomHeightDip() const;
 
   void AttachLayer(scoped_refptr<cc::Layer> layer);
   void RemoveLayer(scoped_refptr<cc::Layer> layer);
-  void AddBeginFrameSubscriber();
-  void RemoveBeginFrameSubscriber();
-  void SetNeedsAnimate();
 
  private:
   class ContentViewUserData;
 
   friend class ContentViewUserData;
   virtual ~ContentViewCoreImpl();
 
   // NotificationObserver implementation.
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
   // WebContentsObserver implementation.
   virtual void RenderViewReady() OVERRIDE;
   virtual void WebContentsDestroyed(WebContents* web_contents) OVERRIDE;
 
   // --------------------------------------------------------------------------
   // Other private methods and data
   // --------------------------------------------------------------------------
 
   void InitWebContents();
 
   RenderWidgetHostViewAndroid* GetRenderWidgetHostViewAndroid();
 
   blink::WebGestureEvent MakeGestureEvent(
       blink::WebInputEvent::Type type, int64 time_ms, float x, float y) const;
 
-  void SendBeginFrame(base::TimeTicks frame_time);
-
   gfx::Size GetViewportSizePix() const;
   gfx::Size GetViewportSizeOffsetPix() const;
 
   void DeleteScaledSnapshotTexture();
 
   bool OnMotionEvent(const ui::MotionEvent& event);
   void SendGestureEvent(const blink::WebGestureEvent& event);
 
   // Update focus state of the RenderWidgetHostView.
   void SetFocusInternal(bool focused);
@@ skipping 11 matching lines @@
   // Reference to the current WebContents used to determine how and what to
   // display in the ContentViewCore.
   WebContentsImpl* web_contents_;
 
   // A compositor layer containing any layer that should be shown.
   scoped_refptr<cc::Layer> root_layer_;
 
   // Device scale factor.
   float dpi_scale_;
 
-  // Variables used to keep track of frame timestamps and deadlines.
-  base::TimeDelta vsync_interval_;
-  base::TimeDelta expected_browser_composite_time_;
-
   // The Android view that can be used to add and remove decoration layers
   // like AutofillPopup.
   ui::ViewAndroid* view_android_;
 
   // The owning window that has a hold of main application activity.
   ui::WindowAndroid* window_android_;
 
   // The cache of device's current orientation set from Java side, this value
   // will be sent to Renderer once it is ready.
   int device_orientation_;
 
   bool geolocation_needs_pause_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_