Remove duplicate application cpp files in mojo/application.

mojo/application/application_runner_chromium.h

-// 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.
-
-#ifndef MOJO_APPLICATION_APPLICATION_RUNNER_CHROMIUM_H_
-#define MOJO_APPLICATION_APPLICATION_RUNNER_CHROMIUM_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "third_party/mojo/src/mojo/public/cpp/system/core.h"
-
-namespace mojo {
-
-class ApplicationDelegate;
-
-// A utility for running a chromium based mojo Application. The typical use
-// case is to use when writing your MojoMain:
-//
-//  MojoResult MojoMain(MojoHandle shell_handle) {
-//    mojo::ApplicationRunnerChromium runner(new MyDelegate());
-//    return runner.Run(shell_handle);
-//  }
-//
-// ApplicationRunnerChromium takes care of chromium environment initialization
-// and shutdown, and starting a MessageLoop from which your application can run
-// and ultimately Quit().
-class ApplicationRunnerChromium {
- public:
-  // Takes ownership of |delegate|.
-  explicit ApplicationRunnerChromium(ApplicationDelegate* delegate);
-  ~ApplicationRunnerChromium();
-
-  static void InitBaseCommandLine();
-
-  void set_message_loop_type(base::MessageLoop::Type type);
-
-  // Once the various parameters have been set above, use Run to initialize an
-  // ApplicationImpl wired to the provided delegate, and run a MessageLoop until
-  // the application exits.
-  MojoResult Run(MojoHandle shell_handle);
-
- private:
-  scoped_ptr<ApplicationDelegate> delegate_;
-
-  // MessageLoop type. TYPE_CUSTOM is default (MessagePumpMojo will be used as
-  // the underlying message pump).
-  base::MessageLoop::Type message_loop_type_;
-  // Whether Run() has been called.
-  bool has_run_;
-
-  MOJO_DISALLOW_COPY_AND_ASSIGN(ApplicationRunnerChromium);
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_APPLICATION_APPLICATION_RUNNER_CHROMIUM_H_