Mojo: Rename PlatformChannelHandle to PlatformHandle, etc.

mojo/system/platform_channel.h

-// 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.
-
-#ifndef MOJO_SYSTEM_PLATFORM_CHANNEL_H_
-#define MOJO_SYSTEM_PLATFORM_CHANNEL_H_
-
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "mojo/system/platform_channel_handle.h"
-#include "mojo/system/system_impl_export.h"
-
-namespace mojo {
-namespace system {
-
-class MOJO_SYSTEM_IMPL_EXPORT PlatformChannel {
- public:
-  virtual ~PlatformChannel();
-
-  // Creates a channel if you already have the underlying handle for it, taking
-  // ownership of |handle|.
-  static scoped_ptr<PlatformChannel> CreateFromHandle(
-      const PlatformChannelHandle& handle);
-
-  // Returns the channel's handle, passing ownership.
-  PlatformChannelHandle PassHandle();
-
-  bool is_valid() const { return handle_.is_valid(); }
-
- protected:
-  PlatformChannel();
-
-  PlatformChannelHandle* mutable_handle() { return &handle_; }
-
- private:
-  PlatformChannelHandle handle_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformChannel);
-};
-
-}  // namespace system
-}  // namespace mojo
-
-#endif  // MOJO_SYSTEM_PLATFORM_CHANNEL_H_