Rename RootWindowHost to WindowTreeHost

mojo/examples/aura_demo/aura_demo.cc

 // Copyright 2013 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 <stdio.h>
 #include <string>
 
 #include "base/message_loop/message_loop.h"
 #include "mojo/common/bindings_support_impl.h"
 #include "mojo/examples/aura_demo/demo_screen.h"
@@ skipping 107 matching lines @@
 
 class AuraDemo : public ShellClient {
  public:
   explicit AuraDemo(ScopedMessagePipeHandle shell_handle)
       : shell_(shell_handle.Pass(), this) {
     screen_.reset(DemoScreen::Create());
     gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, screen_.get());
 
     mojo::ScopedMessagePipeHandle client_handle, native_viewport_handle;
     CreateMessagePipe(&client_handle, &native_viewport_handle);
-    root_window_host_.reset(new RootWindowHostMojo(
+    root_window_host_.reset(new WindowTreeHostMojo(
         native_viewport_handle.Pass(),
         base::Bind(&AuraDemo::HostContextCreated, base::Unretained(this))));
     mojo::AllocationScope scope;
     shell_->Connect("mojo:mojo_native_viewport_service", client_handle.Pass());
   }
 
   virtual void AcceptConnection(ScopedMessagePipeHandle handle) MOJO_OVERRIDE {
     NOTREACHED() << "AuraDemo can't be connected to.";
   }
 
@@ skipping 37 matching lines @@
 
   scoped_ptr<DemoWindowDelegate> delegate1_;
   scoped_ptr<DemoWindowDelegate> delegate2_;
   scoped_ptr<DemoWindowDelegate> delegate21_;
 
   aura::Window* window1_;
   aura::Window* window2_;
   aura::Window* window21_;
 
   mojo::RemotePtr<Shell> shell_;
-  scoped_ptr<RootWindowHostMojo> root_window_host_;
+  scoped_ptr<WindowTreeHostMojo> root_window_host_;
   scoped_ptr<aura::RootWindow> root_window_;
 };
 
 }  // namespace examples
 }  // namespace mojo
 
 extern "C" AURA_DEMO_EXPORT MojoResult CDECL MojoMain(
     MojoHandle shell_handle) {
   base::MessageLoop loop;
   mojo::common::BindingsSupportImpl bindings_support_impl;
   mojo::BindingsSupport::Set(&bindings_support_impl);
   MojoGLES2Initialize();
 
   // TODO(beng): This crashes in a DCHECK on X11 because this thread's
   //             MessageLoop is not of TYPE_UI. I think we need a way to build
   //             Aura that doesn't define platform-specific stuff.
   aura::Env::CreateInstance();
   mojo::examples::AuraDemo app(
       mojo::MakeScopedHandle(mojo::MessagePipeHandle(shell_handle)).Pass());
   loop.Run();
 
   MojoGLES2Terminate();
   mojo::BindingsSupport::Set(NULL);
   return MOJO_RESULT_OK;
 }