Preliminary implementation of Google-style dialogs in ash::internal::DialogFrameView

ui/gfx/insets.h

Index: ui/gfx/insets.h
diff --git a/ui/gfx/insets.h b/ui/gfx/insets.h
index 147d58fa2305227f518d51179df98eec6367500d..9cf5e0aca09ce3642cb871c55baaface57124926 100644
--- a/ui/gfx/insets.h
+++ b/ui/gfx/insets.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -80,6 +80,10 @@ class UI_EXPORT Insets {
     return *this;
   }
 
+  Insets operator-() const {
+    return Insets(-top_, -left_, -bottom_, -right_);
+  }
+
   // Returns a string representation of the insets.
   std::string ToString() const;