Initial support for native accessibility in ARC

components/exo/surface.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 COMPONENTS_EXO_SURFACE_H_
 #define COMPONENTS_EXO_SURFACE_H_
 
 #include <list>
 #include <memory>
 #include <set>
@@ skipping 220 matching lines @@
 
   // Sets the |property| to its default value. Useful for avoiding a cast when
   // setting to NULL.
   template <typename T>
   void ClearProperty(const SurfaceProperty<T>* property);
 
   bool HasPendingDamageForTesting(const gfx::Rect& damage) const {
     return pending_damage_.contains(gfx::RectToSkIRect(damage));
   }
 
+  // Updates the accessible tree source for this surface.
+  void UpdateAXTreeID(int32_t id);
+
  private:
   struct State {
     State();
     ~State();
 
     bool operator==(const State& other);
     bool operator!=(const State& other) { return !(*this == other); }
 
     SkRegion opaque_region;
     SkRegion input_region;
@@ skipping 165 matching lines @@
   // ui::Layer::SetShowSurface because the layer needs to know how to add
   // references to surfaces.
   scoped_refptr<cc::SurfaceReferenceFactory> surface_reference_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Surface);
 };
 
 }  // namespace exo
 
 #endif  // COMPONENTS_EXO_SURFACE_H_