Aura/ash split: Don't use X11 window borders.

ui/base/cocoa/events_mac.mm

Index: ui/base/cocoa/events_mac.mm
diff --git a/ui/base/cocoa/events_mac.mm b/ui/base/cocoa/events_mac.mm
index 437b4659a64287f3bef430c6bb43b7749127cf47..7efc7cfdd13143fa3a6ed8d794b73e28207336d8 100644
--- a/ui/base/cocoa/events_mac.mm
+++ b/ui/base/cocoa/events_mac.mm
@@ -128,6 +128,13 @@ gfx::Point EventLocationFromNative(const base::NativeEvent& native_event) {
   return gfx::Point(NSPointToCGPoint(location));
 }
 
+gfx::Point EventRootLocationFromNative(const base::NativeEvent& native_event) {
+  // TOOD(erg): I have no idea how to calculate this, and since I doubt we'll
+  // ever ship an aura desktop build on the Mac, just return the normal
+  // location.
+  return EventLocationFromNative(native_event);
+}
+
 KeyboardCode KeyboardCodeFromNative(const base::NativeEvent& native_event) {
   return ui::KeyboardCodeFromNSEvent(native_event);
 }