Removing dedicated worker-related IPC code (second round).

content/renderer/websharedworker_proxy.h

 // Copyright (c) 2009 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_RENDERER_WEBSHAREDWORKER_PROXY_H_
 #define CONTENT_RENDERER_WEBSHAREDWORKER_PROXY_H_
 #pragma once
 
+#include <string>
+#include <vector>
+
 #include "base/basictypes.h"
-#include "content/renderer/webworker_base.h"
+#include "base/memory/scoped_ptr.h"
 #include "googleurl/src/gurl.h"
+#include "ipc/ipc_channel.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSharedWorker.h"
 
 class ChildThread;
 
 // Implementation of the WebSharedWorker APIs. This object is intended to only
 // live long enough to allow the caller to send a "connect" event to the worker
 // thread. Once the connect event has been sent, all future communication will
 // happen via the WebMessagePortChannel, and the WebSharedWorker instance will
 // be freed.
 class WebSharedWorkerProxy : public WebKit::WebSharedWorker,
-                             private WebWorkerBase {
+                             private IPC::Channel::Listener {
  public:
   // If the worker not loaded yet, route_id == MSG_ROUTING_NONE
   WebSharedWorkerProxy(ChildThread* child_thread,
                        unsigned long long document_id,
                        bool exists,
                        int route_id,
                        int render_view_route_id);
+  virtual ~WebSharedWorkerProxy();
 
   // Implementations of WebSharedWorker APIs
   virtual bool isStarted();
   virtual void connect(WebKit::WebMessagePortChannel* channel,
                        ConnectListener* listener);
   virtual void startWorkerContext(const WebKit::WebURL& script_url,
                                   const WebKit::WebString& name,
                                   const WebKit::WebString& user_agent,
                                   const WebKit::WebString& source_code,
                                   long long script_resource_appcache_id);
   virtual void terminateWorkerContext();
   virtual void clientDestroyed();
 
+ private:
   // IPC::Channel::Listener implementation.
   virtual bool OnMessageReceived(const IPC::Message& message);
 
- private:
+  // Returns true if the worker is running (can send messages to it).
+  bool IsStarted();
+
+  // Disconnects the worker (stops listening for incoming messages).
+  void Disconnect();
+
+  // Sends a message to the worker thread (forwarded via the RenderViewHost).
+  // If WorkerStarted() has not yet been called, message is queued.
+  bool Send(IPC::Message*);
+
+  // Returns true if there are queued messages.
+  bool HasQueuedMessages() { return !queued_messages_.empty(); }
+
+  // Sends any messages currently in the queue.
+  void SendQueuedMessages();
+
+  void CreateWorkerContext(const GURL& script_url,
+                           bool is_shared,
+                           const string16& name,
+                           const string16& user_agent,
+                           const string16& source_code,
+                           int pending_route_id,
+                           int64 script_resource_appcache_id);
   void OnWorkerCreated();
 
+
+  // Routing id associated with this worker - used to receive messages from the
+  // worker, and also to route messages to the worker (WorkerService contains
+  // a map that maps between these renderer-side route IDs and worker-side
+  // routing ids).
+  int route_id_;
+
+  // The routing id for the RenderView that created this worker.
+  int render_view_route_id_;
+
+  ChildThread* child_thread_;
+
+  // ID of our parent document (used to shutdown workers when the parent
+  // document is detached).
+  unsigned long long document_id_;
+
+  // ID of our parent's appcache host, only valid for dedicated workers.
+  int parent_appcache_host_id_;
+
+  // Stores messages that were sent before the StartWorkerContext message.
+  std::vector<IPC::Message*> queued_messages_;
+
   // The id for the placeholder worker instance we've stored on the
   // browser process (we need to pass this same route id back in when creating
   // the worker).
   int pending_route_id_;
   ConnectListener* connect_listener_;
 
   DISALLOW_COPY_AND_ASSIGN(WebSharedWorkerProxy);
 };
 
 #endif  // CONTENT_RENDERER_WEBSHAREDWORKER_PROXY_H_