Stop painting when receiving delegated frame

content/browser/web_contents/aura/shadow_layer_delegate.cc

 // Copyright (c) 2013 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/web_contents/aura/shadow_layer_delegate.h"
 
 #include "base/bind.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
 #include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
@@ skipping 33 matching lines @@
       SkGradientShader::CreateLinear(points, kShadowColors, NULL,
           arraysize(points), SkShader::kRepeat_TileMode));
 
   gfx::Rect paint_rect = gfx::Rect(0, 0, kShadowThick,
                                    layer_->bounds().height());
   SkPaint paint;
   paint.setShader(shader.get());
   canvas->sk_canvas()->drawRect(gfx::RectToSkRect(paint_rect), paint);
 }
 
+void ShadowLayerDelegate::OnDelegatedFrameDamage(
+    const gfx::Rect& damage_rect_in_dip) {
+}
+
 void ShadowLayerDelegate::OnDeviceScaleFactorChanged(float scale_factor) {
 }
 
 base::Closure ShadowLayerDelegate::PrepareForLayerBoundsChange() {
   return base::Bind(&base::DoNothing);
 }
 
 }  // namespace content