Add CreateWithDisableAero, to allow Windows capturer to be created without disabling Aero.

media/video/capture/screen/screen_capturer.h

 // Copyright (c) 2012 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 MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_H_
 #define MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
@@ skipping 68 matching lines @@
 
   virtual ~ScreenCapturer() {}
 
   // Creates platform-specific capturer.
   static scoped_ptr<ScreenCapturer> Create();
 
 #if defined(OS_LINUX)
   // Creates platform-specific capturer and instructs it whether it should use
   // X DAMAGE support.
   static scoped_ptr<ScreenCapturer> CreateWithXDamage(bool use_x_damage);
-#endif  // defined(OS_LINUX)
+#elif defined(OS_WIN)
+  // Creates Windows-specific capturer and instructs it whether or not to
+  // disable desktop compositing.
+  static scoped_ptr<ScreenCapturer> CreateWithDisableAero(bool disable_aero);
+#endif
 
   // Called at the beginning of a capturing session. |delegate| must remain
   // valid until Stop() is called.
   virtual void Start(Delegate* delegate) = 0;
 
   // Called at the end of a capturing session.
   virtual void Stop() = 0;
 
   // Invalidates the specified region.
   virtual void InvalidateRegion(const SkRegion& invalid_region) = 0;
 
   // Captures the screen data associated with each of the accumulated
   // dirty region. When the capture is complete, the delegate is notified even
   // if the dirty region is empty.
   //
   // It is OK to call this method while another thread is reading
   // data of the previous capture. There can be at most one concurrent read
   // going on when this method is called.
   virtual void CaptureFrame() = 0;
 };
 
 }  // namespace media
 
 #endif  // MEDIA_VIDEO_CAPTURE_SCREEN_SCREEN_CAPTURER_H_