Implement some mothods in SharedWorkerHost and SharedWorkerServiceImpl

content/browser/shared_worker/shared_worker_host.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 CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_HOST_H_
 #define CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_HOST_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
+#include "base/strings/string16.h"
+
+class GURL;
+
+namespace IPC {
+class Message;
+}
 
 namespace content {
 class SharedWorkerMessageFilter;
 class SharedWorkerInstance;
 
 // The SharedWorkerHost is the interface that represents the browser side of
 // the browser <-> worker communication channel.
 class SharedWorkerHost {
  public:
   explicit SharedWorkerHost(SharedWorkerInstance* instance);
   ~SharedWorkerHost();
 
+  // Sends the message to the SharedWorker in a renderer process.

[kinuko, 2014/02/27 11:34:44]

nit: message -> |message| for parameters

here and below, just for better (chrome-preferred-style) commenting

[horo, 2014/02/28 04:59:14]

Done.

+  bool Send(IPC::Message* message);
+
   // Starts the SharedWorker in the renderer process which is associated with
   // |filter|.
   void Init(SharedWorkerMessageFilter* filter);
 
+  // Returns true iff the given message from a renderer process was forwarded to
+  // the worker.
+  bool FilterMessage(const IPC::Message& message,
+                     SharedWorkerMessageFilter* filter);
+
+  // Handles the shutdown of the filter. If the worker has no other client,
+  // sends TerminateWorkerContext message to shut it down.
+  void FilterShutdown(SharedWorkerMessageFilter* filter);
+
+  // Shuts down any shared workers that are no longer referenced by active
+  // documents.
+  void DocumentDetached(SharedWorkerMessageFilter* filter,
+                        unsigned long long document_id);
+
+  void WorkerContextClosed();
+  void WorkerScriptLoaded();
+  void WorkerScriptLoadFailed();
+  void WorkerConnected(int message_port_id);
+  void WorkerContextDestroyed();
+  void AllowDatabase(const GURL& url,
+                     const base::string16& name,
+                     const base::string16& display_name,
+                     unsigned long estimated_size,
+                     bool* result);
+  void AllowFileSystem(const GURL& url, bool* result);
+  void AllowIndexedDB(const GURL& url,
+                      const base::string16& name,
+                      bool* result);
+
   SharedWorkerInstance* instance() { return instance_.get(); }
+  SharedWorkerMessageFilter* parent_render_filter() const {
+    return parent_render_filter_;
+  }
   int worker_route_id() const { return worker_route_id_; }
 
  private:
+  // Relays a message to the given endpoint.  Takes care of parsing the message

[kinuko, 2014/02/27 11:34:44]

'given endpoint' is not obvious from the signature...

[horo, 2014/02/28 04:59:14]

Done.

+  // if it contains a message port and sending it a valid route id.
+  void RelayMessage(const IPC::Message& message,
+                    SharedWorkerMessageFilter* incoming_filter);
+
   scoped_ptr<SharedWorkerInstance> instance_;
+  SharedWorkerMessageFilter* parent_render_filter_;

[kinuko, 2014/02/27 11:34:44]

Is this filter to talk to a shared worker, but not to the parent document? If so
this name feels a bit confusing.

[horo, 2014/02/28 04:59:14]

Done.

+  int parent_render_process_id_;
   int worker_route_id_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedWorkerHost);
 };
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_SHARED_WORKER_SHARED_WORKER_HOST_H_