Fix ScreenCapturerMac handling of secondary configurations.

media/video/capture/screen/mac/desktop_configuration.h

Index: media/video/capture/screen/mac/desktop_configuration.h
diff --git a/media/video/capture/screen/mac/desktop_configuration.h b/media/video/capture/screen/mac/desktop_configuration.h
index c3c65b39be54a5d7daf613ad0a8f738e7275beb4..4b790a4c5710442a301e24b8c8a7740d048f191e 100644
--- a/media/video/capture/screen/mac/desktop_configuration.h
+++ b/media/video/capture/screen/mac/desktop_configuration.h
@@ -20,10 +20,6 @@ namespace media {
 struct MEDIA_EXPORT MacDisplayConfiguration {
   MacDisplayConfiguration();
 
-  // Returns the current configuration of the specified display.
-  MEDIA_EXPORT static MacDisplayConfiguration ForDisplay(
-      CGDirectDisplayID display_id);
-
   // Cocoa identifier for this display.
   CGDirectDisplayID id;
 
@@ -41,11 +37,15 @@ typedef std::vector<MacDisplayConfiguration> MacDisplayConfigurations;
 
 // Describes the configuration of the whole desktop.
 struct MEDIA_EXPORT MacDesktopConfiguration {
+  // Used to request Cartesian or inverse-Cartesian coordinates.
+  enum Origin { BottomLeftOrigin, TopLeftOrigin };
+
   MacDesktopConfiguration();
   ~MacDesktopConfiguration();
 
-  // Returns the current configuration of the desktop.
-  MEDIA_EXPORT static MacDesktopConfiguration GetCurrent();
+  // Returns the desktop & display configurations in Cartesian (bottom-left
+  // origin) or inverse-Cartesian (top-left origin) coordinates.
+  MEDIA_EXPORT static MacDesktopConfiguration GetCurrent(Origin origin);

[Sergey Ulanov, 2013/02/11 23:16:02]

Do we really need |origin| here? This function is always called with
TopLeftOrigin.

 
   // Bounds of the desktop in Density-Independent Pixels (DIPs).
   SkIRect bounds;