Compositor bindings for mojo html_viewer

mojo/services/html_viewer/html_viewer.cc

 // 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.
 
 #include "base/message_loop/message_loop.h"
+#include "base/threading/thread.h"
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/application/application_runner_chromium.h"
 #include "mojo/public/cpp/application/interface_factory_impl.h"
 #include "mojo/services/html_viewer/blink_platform_impl.h"
 #include "mojo/services/html_viewer/html_document_view.h"
 #include "mojo/services/public/interfaces/content_handler/content_handler.mojom.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 
 namespace mojo {
 
 class HTMLViewer;
 
 class ContentHandlerImpl : public InterfaceImpl<ContentHandler> {
  public:
-  explicit ContentHandlerImpl(Shell* shell) : shell_(shell) {}
+  ContentHandlerImpl(Shell* shell,
+                     scoped_refptr<base::MessageLoopProxy> compositor_thread)
+      : shell_(shell), compositor_thread_(compositor_thread) {}
   virtual ~ContentHandlerImpl() {}
 
  private:
   // Overridden from ContentHandler:
   virtual void OnConnect(
       const mojo::String& url,
       URLResponsePtr response,
       InterfaceRequest<ServiceProvider> service_provider_request) OVERRIDE {
-    new HTMLDocumentView(
-        response.Pass(), service_provider_request.Pass(), shell_);
+    new HTMLDocumentView(response.Pass(),
+                         service_provider_request.Pass(),
+                         shell_,
+                         compositor_thread_);
   }
 
   Shell* shell_;
+  scoped_refptr<base::MessageLoopProxy> compositor_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentHandlerImpl);
 };
 
-class HTMLViewer : public ApplicationDelegate {
+class HTMLViewer : public ApplicationDelegate,
+                   public InterfaceFactory<ContentHandler> {
  public:
-  HTMLViewer() {}
+  HTMLViewer() : compositor_thread_("compositor thread") {}
 
   virtual ~HTMLViewer() { blink::shutdown(); }
 
  private:
   // Overridden from ApplicationDelegate:
   virtual void Initialize(ApplicationImpl* app) OVERRIDE {
-    content_handler_factory_.reset(
-        new InterfaceFactoryImplWithContext<ContentHandlerImpl, Shell>(
-            app->shell()));
+    shell_ = app->shell();
     blink_platform_impl_.reset(new BlinkPlatformImpl(app));
     blink::initialize(blink_platform_impl_.get());
+    compositor_thread_.Start();
   }
 
   virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
       OVERRIDE {
-    connection->AddService(content_handler_factory_.get());
+    connection->AddService(this);
     return true;
   }
 
+  // Overridden from InterfaceFactory<ContentHandler>
+  virtual void Create(ApplicationConnection* connection,
+                      InterfaceRequest<ContentHandler> request) OVERRIDE {
+    BindToRequest(
+        new ContentHandlerImpl(shell_, compositor_thread_.message_loop_proxy()),
+        &request);
+  }
+
   scoped_ptr<BlinkPlatformImpl> blink_platform_impl_;
-  scoped_ptr<InterfaceFactoryImplWithContext<ContentHandlerImpl, Shell> >
-      content_handler_factory_;
+  Shell* shell_;
+  base::Thread compositor_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(HTMLViewer);
 };
 
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(new mojo::HTMLViewer);
   return runner.Run(shell_handle);
 }