Mozart: Directly associate the renderer with the view tree.

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 82 matching lines @@
   // Destroys |view_state| if an error occurs.
   void ConnectToViewService(ViewState* view_state,
                             const mojo::String& service_name,
                             mojo::ScopedMessagePipeHandle client_handle);
 
   // Called when one of the view pipes is closed remotely.
   void OnViewDied(ViewState* view_state, const std::string& reason);
 
   // VIEW TREE REQUESTS
 
+  // Sets the view tree's renderer.
+  // Destroys |tree_state| if an error occurs.
+  void SetRenderer(ViewTreeState* tree_state,
+                   mojo::gfx::composition::RendererPtr renderer);
+
   // Requests layout.
   // Destroys |tree_state| if an error occurs.
   void RequestLayout(ViewTreeState* tree_state);
 
   // Sets the root of the view tree.
   // Destroys |tree_state| if an error occurs.
   void SetRoot(ViewTreeState* tree_state,
                uint32_t root_key,
                mojo::InterfaceHandle<mojo::ui::ViewOwner> root_view_owner);
 
@@ skipping 53 matching lines @@
   void IssueNextViewTreeLayoutRequest(ViewTreeState* tree_state);
   void OnViewLayoutResult(base::WeakPtr<ViewState> view_state_weak,
                           mojo::ui::ViewLayoutResultPtr result);
   void OnViewTreeLayoutResult(base::WeakPtr<ViewTreeState> tree_state_weak);
 
   // SCENE MANAGEMENT
 
   void OnSceneCreated(base::WeakPtr<ViewState> view_state_weak,
                       mojo::gfx::composition::SceneTokenPtr scene_token);
 
+  // RENDERING
+
+  void UpdateViewTreeRootScene(ViewTreeState* view_tree);
+  void OnRendererDied(ViewTreeState* view_tree);
+
   // SIGNALING
 
   void SendChildUnavailable(ViewState* parent_state, uint32_t child_key);
   void SendRootUnavailable(ViewTreeState* tree_state, uint32_t root_key);
+  void SendRendererDied(ViewTreeState* tree_state);
 
   bool IsViewStateRegisteredDebug(ViewState* view_state) {
     return view_state && FindView(view_state->view_token()->value);
   }
 
   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, ViewTreeState*> view_trees_by_token_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewRegistry);
 };
 
 }  // namespace view_manager
 
 #endif  // SERVICES_UI_VIEW_MANAGER_VIEW_REGISTRY_H_