Removing unused and private methods remoting::Capturer interface.

remoting/host/capturer.h

Index: remoting/host/capturer.h
diff --git a/remoting/host/capturer.h b/remoting/host/capturer.h
index 311aee13383ebc3cc13e001bbfbf4f47bc65a127..6dda733378c430139355958e134effcb76b5a953 100644
--- a/remoting/host/capturer.h
+++ b/remoting/host/capturer.h
@@ -85,25 +85,12 @@ class Capturer {
   // Called at the end of a capturing session.
   virtual void Stop() = 0;
 
-  // Called when the screen configuration is changed.
-  virtual void ScreenConfigurationChanged() = 0;
-
   // Return the pixel format of the screen.
   virtual media::VideoFrame::Format pixel_format() const = 0;
 
-  // Clear out the invalid region.
-  virtual void ClearInvalidRegion() = 0;
-
   // Invalidate the specified region.
   virtual void InvalidateRegion(const SkRegion& invalid_region) = 0;
 
-  // Invalidate the entire screen, of a given size.
-  virtual void InvalidateScreen(const SkISize& size) = 0;
-
-  // Invalidate the entire screen, using the size of the most recently
-  // captured screen.
-  virtual void InvalidateFullScreen() = 0;
-
   // Capture the screen data associated with each of the accumulated
   // dirty region.
   // When the capture is complete, |callback| is called even if the dirty region