Create an API around WorkerService that chrome consumes. Rename the existing WorkerService to Wor...

content/browser/worker_host/worker_service_impl.h

 // Copyright (c) 2011 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_WORKER_HOST_WORKER_SERVICE_H_
 #define CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/singleton.h"
 #include "base/observer_list.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/browser/worker_host/worker_process_host.h"
-#include "content/common/content_export.h"
 #include "content/public/browser/notification_registrar.h"
-#include "googleurl/src/gurl.h"
+#include "content/public/browser/worker_service.h"
 
+class GURL;
 struct ViewHostMsg_CreateWorker_Params;
-class WorkerServiceObserver;
 
 namespace content {
 class ResourceContext;
-}  // namespace content
+class WorkerServiceObserver;
 
-// A singleton for managing HTML5 web workers.
-class CONTENT_EXPORT WorkerService {
+class CONTENT_EXPORT WorkerServiceImpl : public WorkerService {
  public:
-  // Returns the WorkerService singleton.
-  static WorkerService* GetInstance();
+  // Returns the WorkerServiceImpl singleton.
+  static WorkerServiceImpl* GetInstance();
+
+  // WorkerService implementation:
+  virtual void AddObserver(WorkerServiceObserver* observer) OVERRIDE;
+  virtual void RemoveObserver(WorkerServiceObserver* observer) OVERRIDE;
 
   // These methods correspond to worker related IPCs.
   void CreateWorker(const ViewHostMsg_CreateWorker_Params& params,
                     int route_id,
                     WorkerMessageFilter* filter,
-                    const content::ResourceContext& resource_context);
+                    const ResourceContext& resource_context);
   void LookupSharedWorker(const ViewHostMsg_CreateWorker_Params& params,
                           int route_id,
                           WorkerMessageFilter* filter,
-                          const content::ResourceContext* resource_context,
+                          const ResourceContext* resource_context,
                           bool* exists,
                           bool* url_error);
   void CancelCreateDedicatedWorker(int route_id, WorkerMessageFilter* filter);
   void ForwardToWorker(const IPC::Message& message,
                        WorkerMessageFilter* filter);
   void DocumentDetached(unsigned long long document_id,
                         WorkerMessageFilter* filter);
 
   void OnWorkerMessageFilterClosing(WorkerMessageFilter* filter);
 
   int next_worker_route_id() { return ++next_worker_route_id_; }
 
   // Given a worker's process id, return the IDs of the renderer process and
   // render view that created it.  For shared workers, this returns the first
   // parent.
   // TODO(dimich): This code assumes there is 1 worker per worker process, which
   // is how it is today until V8 can run in separate threads.
   bool GetRendererForWorker(int worker_process_id,
                             int* render_process_id,
                             int* render_view_id) const;
   const WorkerProcessHost::WorkerInstance* FindWorkerInstance(
       int worker_process_id);
 
-  void AddObserver(WorkerServiceObserver* observer);
-  void RemoveObserver(WorkerServiceObserver* observer);
-
   void NotifyWorkerDestroyed(
       WorkerProcessHost* process,
       int worker_route_id);
   void NotifyWorkerContextStarted(
       WorkerProcessHost* process,
       int worker_route_id);
 
   // Used when multiple workers can run in the same process.
   static const int kMaxWorkerProcessesWhenSharing;
 
   // Used when we run each worker in a separate process.
   static const int kMaxWorkersWhenSeparate;
   static const int kMaxWorkersPerTabWhenSeparate;
 
  private:
-  friend struct DefaultSingletonTraits<WorkerService>;
+  friend struct DefaultSingletonTraits<WorkerServiceImpl>;
 
-  WorkerService();
-  ~WorkerService();
+  WorkerServiceImpl();
+  virtual ~WorkerServiceImpl();
 
   // Given a WorkerInstance, create an associated worker process.
   bool CreateWorkerFromInstance(WorkerProcessHost::WorkerInstance instance);
 
   // Returns a WorkerProcessHost object if one exists for the given domain, or
   // NULL if there are no such workers yet.
   WorkerProcessHost* GetProcessForDomain(const GURL& url);
 
   // Returns a WorkerProcessHost based on a strategy of creating one worker per
   // core.
@@ skipping 14 matching lines @@
   bool TabCanCreateWorkerProcess(
       int render_process_id, int render_route_id, bool* hit_total_worker_limit);
 
   // Tries to see if any of the queued workers can be created.
   void TryStartingQueuedWorker();
 
   // APIs for manipulating our set of pending shared worker instances.
   WorkerProcessHost::WorkerInstance* CreatePendingInstance(
       const GURL& url,
       const string16& name,
-      const content::ResourceContext* resource_context);
+      const ResourceContext* resource_context);
   WorkerProcessHost::WorkerInstance* FindPendingInstance(
       const GURL& url,
       const string16& name,
-      const content::ResourceContext* resource_context);
+      const ResourceContext* resource_context);
   void RemovePendingInstances(
       const GURL& url,
       const string16& name,
-      const content::ResourceContext* resource_context);
+      const ResourceContext* resource_context);
 
   WorkerProcessHost::WorkerInstance* FindSharedWorkerInstance(
       const GURL& url,
       const string16& name,
-      const content::ResourceContext* resource_context);
+      const ResourceContext* resource_context);
 
-  content::NotificationRegistrar registrar_;
+  NotificationRegistrar registrar_;
   int next_worker_route_id_;
 
   WorkerProcessHost::Instances queued_workers_;
 
   // These are shared workers that have been looked up, but not created yet.
   // We need to keep a list of these to synchronously detect shared worker
   // URL mismatches when two pages launch shared workers simultaneously.
   WorkerProcessHost::Instances pending_shared_workers_;
 
   ObserverList<WorkerServiceObserver> observers_;
 
-  DISALLOW_COPY_AND_ASSIGN(WorkerService);
+  DISALLOW_COPY_AND_ASSIGN(WorkerServiceImpl);
 };
 
+}  // namespace content
+
 #endif  // CONTENT_BROWSER_WORKER_HOST_WORKER_SERVICE_H_