"Buttery Smooth" Tab Capture.

content/browser/renderer_host/render_widget_host_view_aura_unittest.cc

Index: content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
index 2e4cab08c6551720ba91384abdc906e421e0321b..9fcef86817ab8f650e4c03ab273b6aae12c899c2 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
@@ -192,7 +192,8 @@ class FakeFrameSubscriber : public RenderWidgetHostViewFrameSubscriber {
   FakeFrameSubscriber(gfx::Size size, base::Callback<void(bool)> callback)
       : size_(size), callback_(callback) {}
 
-  virtual bool ShouldCaptureFrame(base::TimeTicks present_time,
+  virtual bool ShouldCaptureFrame(const gfx::Rect& damage_rect,
+                                  base::TimeTicks present_time,
                                   scoped_refptr<media::VideoFrame>* storage,
                                   DeliverFrameCallback* callback) OVERRIDE {
     *storage = media::VideoFrame::CreateFrame(media::VideoFrame::YV12,