Implement AtkComponent interface for chrome UI.

ui/accessibility/platform/ax_platform_node_auralinux.h

 // Copyright 2015 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_AX_PLATFORM_NODE_AURALINUX_H_
 #define UI_ACCESSIBILITY_AX_PLATFORM_NODE_AURALINUX_H_
 
 #include <atk/atk.h>
 
 #include "ui/accessibility/ax_export.h"
 #include "ui/accessibility/platform/ax_platform_node_base.h"
 
 namespace ui {
 
 // Implements accessibility on Aura Linux using ATK.
 class AXPlatformNodeAuraLinux : public AXPlatformNodeBase {
  public:
   AXPlatformNodeAuraLinux();
 
   // Set or get the root-level Application object that's the parent of all
   // top-level windows.
   AX_EXPORT static void SetApplication(AXPlatformNode* application);
   static AXPlatformNode* application() { return application_; }
 
   AtkRole GetAtkRole();
   void GetAtkState(AtkStateSet* state_set);
   void GetAtkRelations(AtkRelationSet* atk_relation_set);
+  void GetExtents(gint* x, gint* y, gint* width, gint* height,
+                  AtkCoordType coord_type);
+  void GetPosition(gint* x, gint* y, AtkCoordType coord_type);
+  void GetSize(gint* width, gint* height);
+  gfx::Rect GetWindowCoords();

[dmazzoni, 2015/03/27 19:09:15]

This should be private. Move it down under the private section below, and move
the implementation in the source file to match (we try to have the order of
functions in the header and file the same, though not everyone enforces this).

 
   // AXPlatformNode overrides.
   void Destroy() override;
   gfx::NativeViewAccessible GetNativeViewAccessible() override;
   void NotifyAccessibilityEvent(ui::AXEvent event_type) override;
 
   // AXPlatformNodeBase overrides.
   void Init(AXPlatformNodeDelegate* delegate) override;
   int GetIndexInParent() override;
 
  private:
   ~AXPlatformNodeAuraLinux() override;
 
   // We own a reference to this ref-counted object.
   AtkObject* atk_object_;
 
   // The root-level Application object that's the parent of all
   // top-level windows.
   static AXPlatformNode* application_;
 
   DISALLOW_COPY_AND_ASSIGN(AXPlatformNodeAuraLinux);
 };
 
 }  // namespace ui
 
 #endif  // UI_ACCESSIBILITY_AX_PLATFORM_NODE_AURALINUX_H_