Add overscroll edge effect animations for Android.

content/browser/android/content_view_core_impl.h

 // Copyright (c) 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 181 matching lines @@
   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 Animate(JNIEnv* env, jobject /* obj */, jlong frame_time_micros);

[no sievers, 2013/05/13 18:38:24]

Hmm, why 'frame_time_micros'? Maybe just 'monotonic_time' or something?

[jdduke (slow), 2013/05/13 20:44:24]

This was primarily for consistency with the *VSync calls  above; the time
sources are the same. 

   jboolean PopulateBitmapFromCompositor(JNIEnv* env,
                                         jobject obj,
                                         jobject jbitmap);
   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,
@@ skipping 77 matching lines @@
   gfx::Size GetPhysicalBackingSize() const;
   gfx::Size GetViewportSizeDip() const;
   gfx::Size GetViewportSizeOffsetDip() const;
   float GetOverdrawBottomHeightDip() const;
 
   InputEventAckState FilterInputEvent(const WebKit::WebInputEvent& input_event);
 
   void AttachLayer(scoped_refptr<cc::Layer> layer);
   void RemoveLayer(scoped_refptr<cc::Layer> layer);
   void SetVSyncNotificationEnabled(bool enabled);
+  void SetNeedsAnimate();
 
  private:
   enum InputEventVSyncStatus {
       NOT_LAST_INPUT_EVENT_FOR_VSYNC,
       LAST_INPUT_EVENT_FOR_VSYNC
   };
 
   class ContentViewUserData;
 
   friend class ContentViewUserData;
@@ skipping 56 matching lines @@
   scoped_ptr<SyncInputEventFilter> input_event_filter_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_