Add GetScreenBoundsRect to ui::AXPlatformNodeDelegate

ui/accessibility/platform/ax_platform_node_delegate.h

 // Copyright 2014 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.
 
 #ifndef UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_
 #define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_
 
 #include "ui/accessibility/ax_enums.h"
 #include "ui/accessibility/ax_export.h"
 #include "ui/gfx/geometry/vector2d.h"
@@ skipping 31 matching lines @@
   // Get the parent of the node, which may be an AXPlatformNode or it may
   // be a native accessible object implemented by another class.
   virtual gfx::NativeViewAccessible GetParent() = 0;
 
   // Get the number of children of this node.
   virtual int GetChildCount() = 0;
 
   // Get the child of a node given a 0-based index.
   virtual gfx::NativeViewAccessible ChildAtIndex(int index) = 0;
 
-  // Get the offset to convert local coordinates to screen global coordinates.
-  virtual gfx::Vector2d GetGlobalCoordinateOffset() = 0;
+  // Get the bounds of this node in screen coordinates.
+  virtual gfx::Rect GetScreenBoundsRect() const = 0;
 
   // Do a *synchronous* hit test of the given location in global screen
   // coordinates, and the node within this node's subtree (inclusive) that's
   // hit, if any.
   //
   // If the result is anything other than this object or NULL, it will be
   // hit tested again recursively - that allows hit testing to work across
   // implementation classes. It's okay to take advantage of this and return
   // only an immediate child and not the deepest descendant.
   //
@@ skipping 18 matching lines @@
   //
 
   // Perform an accessibility action, switching on the ui::AXAction
   // provided in |data|.
   virtual bool AccessibilityPerformAction(const ui::AXActionData& data) = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_DELEGATE_H_