Add Vector2d classes that represent offsets, instead of using Point.

ui/views/bubble/bubble_delegate.cc

 // 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.
 
 #include "ui/views/bubble/bubble_delegate.h"
 
 #include "ui/base/animation/slide_animation.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/views/bubble/bubble_frame_view.h"
 #include "ui/views/widget/widget.h"
@@ skipping 336 matching lines @@
 gfx::Rect BubbleDelegateView::GetBubbleBounds() {
   // The argument rect has its origin at the bubble's arrow anchor point;
   // its size is the preferred size of the bubble's client view (this view).
   return GetBubbleFrameView()->GetUpdatedWindowBounds(GetAnchorRect(),
       GetPreferredSize(), adjust_if_offscreen_);
 }
 
 #if defined(OS_WIN) && !defined(USE_AURA)
 gfx::Rect BubbleDelegateView::GetBubbleClientBounds() const {
   gfx::Rect client_bounds(GetBubbleFrameView()->GetBoundsForClientView());
-  client_bounds.Offset(border_widget_->GetWindowBoundsInScreen().origin());
+  client_bounds.Offset(
+      border_widget_->GetWindowBoundsInScreen().DistanceFromOrigin());
   return client_bounds;
 }
 #endif
 
 }  // namespace views