Switch over to using SkRegions to calculate dirty areas.

remoting/host/capturer_fake_ascii.h

 // Copyright (c) 2011 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.
 
 #ifndef REMOTING_HOST_CAPTURER_FAKE_ASCII_H_
 #define REMOTING_HOST_CAPTURER_FAKE_ASCII_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "remoting/host/capturer.h"
 #include "remoting/host/capturer_helper.h"
 
 namespace remoting {
 
 // A CapturerFakeAscii always outputs an image of 64x48 ASCII characters.
 // This image is artificially generated for testing purpose.
 //
 // CapturerFakeAscii is doubled buffered as required by Capturer. See
 // remoting/host/capturer.h.
 class CapturerFakeAscii : public Capturer {
  public:
   CapturerFakeAscii();
   virtual ~CapturerFakeAscii();
 
   // 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 void ScreenConfigurationChanged() OVERRIDE;
+  virtual media::VideoFrame::Format pixel_format() const OVERRIDE;
+  virtual void ClearInvalidRegion() OVERRIDE;
+  virtual void InvalidateRegion(const SkRegion& inval_region) OVERRIDE;

[Wez, 2011/08/10 22:05:43]

|inval_region|

+  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;
 
  private:
   // Generates an image in the front buffer.
   void GenerateImage();
 
   // The screen dimensions.
   int width_;
   int height_;
   int bytes_per_row_;
 
-  CapturerHelper helper;
+  CapturerHelper helper_;
 
   // We have two buffers for the screen images as required by Capturer.
   static const int kNumBuffers = 2;
   scoped_array<uint8> buffers_[kNumBuffers];
 
   // The current buffer with valid data for reading.
   int current_buffer_;
 
   // Format of pixels returned in buffer.
   media::VideoFrame::Format pixel_format_;
 
   DISALLOW_COPY_AND_ASSIGN(CapturerFakeAscii);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_CAPTURER_FAKE_ASCII_H_