Stop painting when receiving delegated frame

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #import <objc/runtime.h>
 #include <OpenGL/gl.h>
 #include <QuartzCore/QuartzCore.h>
 
@@ skipping 400 matching lines @@
 }
 
 ui::Layer* RenderWidgetHostViewMac::GetLayer() {
   return root_layer_.get();
 }
 
 RenderWidgetHostImpl* RenderWidgetHostViewMac::GetHost() {
   return render_widget_host_;
 }
 
-void RenderWidgetHostViewMac::SchedulePaintInRect(
-    const gfx::Rect& damage_rect_in_dip) {
-  DCHECK(GetLayer());
-  GetLayer()->SchedulePaint(damage_rect_in_dip);
-}
-
 bool RenderWidgetHostViewMac::IsVisible() {
   return !render_widget_host_->is_hidden();
 }
 
 gfx::Size RenderWidgetHostViewMac::DesiredFrameSize() {
   return GetViewBounds().size();
 }
 
 float RenderWidgetHostViewMac::CurrentDeviceScaleFactor() {
   return ViewScaleFactor();
@@ skipping 2917 matching lines @@
 
 // "-webkit-app-region: drag | no-drag" is implemented on Mac by excluding
 // regions that are not draggable. (See ControlRegionView in
 // native_app_window_cocoa.mm). This requires the render host view to be
 // draggable by default.
 - (BOOL)mouseDownCanMoveWindow {
   return YES;
 }
 
 @end