Switch over to using SkRegions to calculate dirty areas.

remoting/host/host_mock_objects.h

Index: remoting/host/host_mock_objects.h
diff --git a/remoting/host/host_mock_objects.h b/remoting/host/host_mock_objects.h
index 0ab8636f55410b9dfbfb2b49e2f4856bc0241405..667a751a9929d2ec787024484a248e97cca995b8 100644
--- a/remoting/host/host_mock_objects.h
+++ b/remoting/host/host_mock_objects.h
@@ -26,11 +26,11 @@ class MockCapturer : public Capturer {
 
   MOCK_METHOD0(ScreenConfigurationChanged, void());
   MOCK_CONST_METHOD0(pixel_format, media::VideoFrame::Format());
-  MOCK_METHOD0(ClearInvalidRects, void());
-  MOCK_METHOD1(InvalidateRects, void(const InvalidRects& inval_rects));
+  MOCK_METHOD0(ClearInvalidRegion, void());
+  MOCK_METHOD1(InvalidateRegion, void(const SkRegion& inval_region));
   MOCK_METHOD1(InvalidateScreen, void(const gfx::Size&));
   MOCK_METHOD0(InvalidateFullScreen, void());
-  MOCK_METHOD1(CaptureInvalidRects, void(CaptureCompletedCallback* callback));
+  MOCK_METHOD1(CaptureInvalidRegion, void(CaptureCompletedCallback* callback));
   MOCK_CONST_METHOD0(size_most_recent, const gfx::Size&());
 
  private: