mojo: Update content handler API

sky/viewer/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/application/application_runner_chromium.h"
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/application_delegate.h"
@@ skipping 15 matching lines @@
 class Viewer : public mojo::ApplicationDelegate,
                public mojo::InterfaceFactory<mojo::ContentHandler> {
  public:
   Viewer() : compositor_thread_("compositor thread") {}
 
   virtual ~Viewer() { blink::shutdown(); }
 
  private:
   // Overridden from ApplicationDelegate:
   virtual void Initialize(mojo::ApplicationImpl* app) override {
-    shell_ = app->shell();
     platform_impl_.reset(new PlatformImpl(app));
     blink::initialize(platform_impl_.get());
     // FIXME: Why not in the component build?
 #if !defined(COMPONENT_BUILD)
     base::i18n::InitializeICU();
 #endif
     compositor_thread_.Start();
   }
 
   virtual bool ConfigureIncomingConnection(
       mojo::ApplicationConnection* connection) override {
     connection->AddService(this);
     connection->AddService(&tracing_);
     return true;
   }
 
   // Overridden from InterfaceFactory<ContentHandler>
   virtual void Create(mojo::ApplicationConnection* connection,
                       mojo::InterfaceRequest<mojo::ContentHandler> request) override {
     mojo::BindToRequest(
-        new ContentHandlerImpl(shell_, compositor_thread_.message_loop_proxy()),
+        new ContentHandlerImpl(compositor_thread_.message_loop_proxy()),
         &request);
   }
 
   scoped_ptr<PlatformImpl> platform_impl_;
-  mojo::Shell* shell_;
   base::Thread compositor_thread_;
 
   TracingFactory tracing_;
 
   DISALLOW_COPY_AND_ASSIGN(Viewer);
 };
 
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(new sky::Viewer);
   return runner.Run(shell_handle);
 }