Mozart: Add ViewInspector contracts for hit testing.

services/ui/view_manager/view_registry.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 SERVICES_UI_VIEW_MANAGER_VIEW_REGISTRY_H_
 #define SERVICES_UI_VIEW_MANAGER_VIEW_REGISTRY_H_
 
 #include <string>
 #include <unordered_map>
 
@@ skipping 118 matching lines @@
 
   // Connects to a view service.
   // Destroys |view_state| if an error occurs.
   void ConnectToViewTreeService(ViewTreeState* tree_state,
                                 const mojo::String& service_name,
                                 mojo::ScopedMessagePipeHandle client_handle);
 
   // Called when one of the view tree pipes is closed remotely.
   void OnViewTreeDied(ViewTreeState* tree_state, const std::string& reason);
 
+  // VIEW INSPECTOR REQUESTS
+
+  void GetHitTester(mojo::ui::ViewTreeTokenPtr view_tree_token,
+                    mojo::InterfaceRequest<mojo::gfx::composition::HitTester>
+                        hit_tester_request,
+                    const GetHitTesterCallback& callback) override;
+
+  void ResolveScenes(
+      mojo::Array<mojo::gfx::composition::SceneTokenPtr> scene_tokens,
+      const ResolveScenesCallback& callback) override;
+
  private:
   // LIFETIME
 
   void UnregisterView(ViewState* view_state);
   void UnregisterViewTree(ViewTreeState* tree_state);
 
   // TREE MANIPULATION
 
   ViewState* FindView(uint32_t view_token_value);
   ViewTreeState* FindViewTree(uint32_t view_tree_token_value);
@@ skipping 47 matching lines @@
   bool IsViewTreeStateRegisteredDebug(ViewTreeState* tree_state) {
     return tree_state && FindViewTree(tree_state->view_tree_token()->value);
   }
 
   mojo::gfx::composition::CompositorPtr compositor_;
   ViewAssociateTable associate_table_;
 
   uint32_t next_view_token_value_ = 1u;
   uint32_t next_view_tree_token_value_ = 1u;
   std::unordered_map<uint32_t, ViewState*> views_by_token_;
+  std::unordered_map<uint32_t, ViewState*> views_by_scene_token_;
   std::unordered_map<uint32_t, ViewTreeState*> view_trees_by_token_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewRegistry);
 };
 
 }  // namespace view_manager
 
 #endif  // SERVICES_UI_VIEW_MANAGER_VIEW_REGISTRY_H_