Switch over to using SkRegions to calculate dirty areas.

remoting/host/capturer_fake.h

Index: remoting/host/capturer_fake.h
diff --git a/remoting/host/capturer_fake.h b/remoting/host/capturer_fake.h
index 879ee037d0c1975b73d544a209351cb699ab0d80..61f412833762107f9b6214dec2dea267230827d2 100644
--- a/remoting/host/capturer_fake.h
+++ b/remoting/host/capturer_fake.h
@@ -21,14 +21,15 @@ class CapturerFake : public Capturer {
   virtual ~CapturerFake();
 
   // Capturer interface.
-  virtual void ScreenConfigurationChanged();
-  virtual media::VideoFrame::Format pixel_format() const;
-  virtual void ClearInvalidRects();
-  virtual void InvalidateRects(const InvalidRects& inval_rects);
-  virtual void InvalidateScreen(const gfx::Size& size);
-  virtual void InvalidateFullScreen();
-  virtual void CaptureInvalidRects(CaptureCompletedCallback* callback);
-  virtual const gfx::Size& size_most_recent() const;
+  virtual void ScreenConfigurationChanged() OVERRIDE;
+  virtual media::VideoFrame::Format pixel_format() const OVERRIDE;
+  virtual void ClearInvalidRegion() OVERRIDE;
+  virtual void InvalidateRegion(const SkRegion& invalid_region) OVERRIDE;
+  virtual void InvalidateScreen(const gfx::Size& size) OVERRIDE;
+  virtual void InvalidateFullScreen() OVERRIDE;
+  virtual void CaptureInvalidRegion(CaptureCompletedCallback* callback)
+      OVERRIDE;
+  virtual const gfx::Size& size_most_recent() const OVERRIDE;
 
  private:
   // Generates an image in the front buffer.