[Android] Implementation of overscroll effect for Android L

content/browser/renderer_host/render_widget_host_view_android.h

Index: content/browser/renderer_host/render_widget_host_view_android.h
diff --git a/content/browser/renderer_host/render_widget_host_view_android.h b/content/browser/renderer_host/render_widget_host_view_android.h
index 6bbd636a2f6bdf52db1649416a5ab2c73aa71e7a..4c56508d2216768de4a4422e4f55e42a8660d6fd 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.h
+++ b/content/browser/renderer_host/render_widget_host_view_android.h
@@ -325,9 +325,6 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   // The most recent content size that was pushed to the texture layer.
   gfx::Size content_size_in_layer_;
 
-  // The device scale of the last received frame.
-  float device_scale_factor_;
-
   // The output surface id of the last received frame.
   uint32_t last_output_surface_id_;
 
@@ -339,6 +336,7 @@ class CONTENT_EXPORT RenderWidgetHostViewAndroid
   // Used to render overscroll overlays.
   // Note: |overscroll_effect_| will never be NULL, even if it's never enabled.
   scoped_ptr<OverscrollGlow> overscroll_effect_;
+  gfx::PointF last_scroll_update_position_;
 
   // Provides gesture synthesis given a stream of touch events (derived from
   // Android MotionEvent's) and touch event acks.