Remaining bits to get views_examples_with_content_exe to work on Mac

ui/events/cocoa/events_mac.mm

Index: ui/events/cocoa/events_mac.mm
diff --git a/ui/events/cocoa/events_mac.mm b/ui/events/cocoa/events_mac.mm
index a8d93650b3610e402a5b7915be43d3bdec0035a8..34573d50816ac90c06f54aaaffb33a59934f7549 100644
--- a/ui/events/cocoa/events_mac.mm
+++ b/ui/events/cocoa/events_mac.mm
@@ -92,8 +92,10 @@ gfx::Point EventLocationFromNative(const base::NativeEvent& native_event) {
     return gfx::Point();
   }
   NSPoint location = [native_event locationInWindow];
-  return gfx::Point(location.x,
-                    NSHeight([[native_event window] frame]) - location.y);
+  NSRect window_frame = [[native_event window] frame];
+  CGFloat content_height =
+      NSHeight([[native_event window] contentRectForFrameRect:window_frame]);
+  return gfx::Point(location.x, content_height - location.y);
 }
 
 gfx::Point EventSystemLocationFromNative(