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

media/video/capture/screen/screen_capturer.h

Index: media/video/capture/screen/screen_capturer.h
diff --git a/media/video/capture/screen/screen_capturer.h b/media/video/capture/screen/screen_capturer.h
index 1dc2330ac6d62fb07e1ddbce6bacbe72d5feb404..d28b9351eeb6d2ea7ac5f15c55f1cd89996afe31 100644
--- a/media/video/capture/screen/screen_capturer.h
+++ b/media/video/capture/screen/screen_capturer.h
@@ -86,7 +86,11 @@ class MEDIA_EXPORT ScreenCapturer {
   // 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.