Use estimated vsync period on Android

ui/base/android/window_android.h

Index: ui/base/android/window_android.h
diff --git a/ui/base/android/window_android.h b/ui/base/android/window_android.h
index cd8ae3408c85f2677e2f8472a7357c4e0f9d3012..4652f753883e3ddc09d5578a53734bf6aa08e67f 100644
--- a/ui/base/android/window_android.h
+++ b/ui/base/android/window_android.h
@@ -22,7 +22,7 @@ class WindowAndroidObserver;
 // Android implementation of the activity window.
 class UI_BASE_EXPORT WindowAndroid {
  public:
-  WindowAndroid(JNIEnv* env, jobject obj, jlong vsync_period);
+  WindowAndroid(JNIEnv* env, jobject obj);
 
   void Destroy(JNIEnv* env, jobject obj);
 
@@ -53,7 +53,10 @@ class UI_BASE_EXPORT WindowAndroid {
 
   void RequestVSyncUpdate();
   void SetNeedsAnimate();
-  void OnVSync(JNIEnv* env, jobject obj, jlong time_micros);
+  void OnVSync(JNIEnv* env,
+               jobject obj,
+               jlong time_micros,
+               jlong period_micros);
   void Animate(base::TimeTicks begin_frame_time);
 
  private:
@@ -62,7 +65,6 @@ class UI_BASE_EXPORT WindowAndroid {
   JavaObjectWeakGlobalRef weak_java_window_;
   gfx::Vector2dF content_offset_;
   WindowAndroidCompositor* compositor_;
-  base::TimeDelta vsync_period_;
 
   ObserverList<WindowAndroidObserver> observer_list_;