Bug 805261 - Implement nsChildView::GetScreenBounds() (MacOSX). r=BenWa

widget/cocoa/nsChildView.h

@@ -400,6 +400,7 @@ public:
   NS_IMETHOD              SetFocus(bool aRaise);
   NS_IMETHOD              GetBounds(nsIntRect &aRect);
   NS_IMETHOD              GetClientBounds(nsIntRect &aRect);
+  NS_IMETHOD              GetScreenBounds(nsIntRect &aRect);
 
   // Returns the "backing scale factor" of the view's window, which is the
   // ratio of pixels in the window's backing store to Cocoa points. Prior to

widget/cocoa/nsChildView.mm

@@ -796,6 +796,13 @@ NS_IMETHODIMP nsChildView::GetClientBounds(nsIntRect &aRect)
   return NS_OK;
 }
 
+NS_IMETHODIMP nsChildView::GetScreenBounds(nsIntRect &aRect)
+{
+  GetBounds(aRect);
+  aRect.MoveTo(WidgetToScreenOffset());
+  return NS_OK;
+}
+
 double
 nsChildView::GetDefaultScaleInternal()
 {