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

content/browser/accessibility/browser_accessibility.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 "content/browser/accessibility/browser_accessibility.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
@@ skipping 133 matching lines @@
   bounds.Offset(-scroll_x, -scroll_y);
 
   return bounds;
 }
 
 gfx::Rect BrowserAccessibility::GetGlobalBoundsRect() {
   gfx::Rect bounds = GetLocalBoundsRect();
 
   // Adjust the bounds by the top left corner of the containing view's bounds
   // in screen coordinates.
-  gfx::Point top_left = manager_->GetViewBounds().origin();
-  bounds.Offset(top_left);
+  bounds.Offset(manager_->GetViewBounds().OffsetFromOrigin());
 
   return bounds;
 }
 
 BrowserAccessibility* BrowserAccessibility::BrowserAccessibilityForPoint(
     const gfx::Point& point) {
   // Walk the children recursively looking for the BrowserAccessibility that
   // most tightly encloses the specified point.
   for (int i = children_.size() - 1; i >= 0; --i) {
     BrowserAccessibility* child = children_[i];
@@ skipping 150 matching lines @@
   for (size_t i = 0; i < children_.size(); ++i)
     result += children_[i]->GetTextRecursive();
   return result;
 }
 
 void BrowserAccessibility::PreInitialize() {
   instance_active_ = true;
 }
 
 }  // namespace content