Move a bunch of child-only code from content/common to content/child

content/common/webmessageportchannel_impl.h

-// Copyright (c) 2012 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 CONTENT_COMMON_WEBMESSAGEPORTCHANNEL_IMPL_H_
-#define CONTENT_COMMON_WEBMESSAGEPORTCHANNEL_IMPL_H_
-
-#include <queue>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-#include "base/string16.h"
-#include "base/synchronization/lock.h"
-#include "ipc/ipc_listener.h"
-#include "third_party/WebKit/public/platform/WebMessagePortChannel.h"
-
-namespace content {
-
-// This is thread safe.
-class WebMessagePortChannelImpl
-    : public WebKit::WebMessagePortChannel,
-      public IPC::Listener,
-      public base::RefCountedThreadSafe<WebMessagePortChannelImpl> {
- public:
-  WebMessagePortChannelImpl();
-  WebMessagePortChannelImpl(int route_id, int message_port_id);
-
-  // Queues received and incoming messages until there are no more in-flight
-  // messages, then sends all of them to the browser process.
-  void QueueMessages();
-  int message_port_id() const { return message_port_id_; }
-
- private:
-  friend class base::RefCountedThreadSafe<WebMessagePortChannelImpl>;
-  virtual ~WebMessagePortChannelImpl();
-
-  // WebMessagePortChannel implementation.
-  virtual void setClient(WebKit::WebMessagePortChannelClient* client);
-  virtual void destroy();
-  virtual void entangle(WebKit::WebMessagePortChannel* channel);
-  virtual void postMessage(const WebKit::WebString& message,
-                           WebKit::WebMessagePortChannelArray* channels);
-  virtual bool tryGetMessage(WebKit::WebString* message,
-                             WebKit::WebMessagePortChannelArray& channels);
-
-  void Init();
-  void Entangle(scoped_refptr<WebMessagePortChannelImpl> channel);
-  void Send(IPC::Message* message);
-
-  // IPC::Listener implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
-
-  void OnMessage(const string16& message,
-                 const std::vector<int>& sent_message_port_ids,
-                 const std::vector<int>& new_routing_ids);
-  void OnMessagedQueued();
-
-  struct Message {
-    Message();
-    ~Message();
-
-    string16 message;
-    std::vector<WebMessagePortChannelImpl*> ports;
-  };
-
-  typedef std::queue<Message> MessageQueue;
-  MessageQueue message_queue_;
-
-  WebKit::WebMessagePortChannelClient* client_;
-  base::Lock lock_;  // Locks access to above.
-
-  int route_id_;  // The routing id for this object.
-  int message_port_id_;  // A globally unique identifier for this message port.
-
-  DISALLOW_COPY_AND_ASSIGN(WebMessagePortChannelImpl);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_WEBMESSAGEPORTCHANNEL_IMPL_H_