Refactor RenderProcessHost to use IPC::Listener instead of RenderWidgetHost

content/browser/renderer_host/render_process_host_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_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 58 matching lines @@
   RenderProcessHostImpl(BrowserContext* browser_context,
                         StoragePartitionImpl* storage_partition_impl,
                         bool supports_browser_plugin,
                         bool is_guest);
   virtual ~RenderProcessHostImpl();
 
   // RenderProcessHost implementation (public portion).
   virtual void EnableSendQueue() OVERRIDE;
   virtual bool Init() OVERRIDE;
   virtual int GetNextRoutingID() OVERRIDE;
+  virtual void AddRoute(int32 routing_id, IPC::Listener* listener) OVERRIDE;
+  virtual void RemoveRoute(int32 routing_id) OVERRIDE;
   virtual void SimulateSwapOutACK(const ViewMsg_SwapOut_Params& params)
       OVERRIDE;
   virtual bool WaitForBackingStoreMsg(int render_widget_id,
                                       const base::TimeDelta& max_delay,
                                       IPC::Message* msg) OVERRIDE;
   virtual void ReceivedBadMessage() OVERRIDE;
   virtual void WidgetRestored() OVERRIDE;
   virtual void WidgetHidden() OVERRIDE;
   virtual int VisibleWidgetCount() const OVERRIDE;
   virtual bool IsGuest() const OVERRIDE;
   virtual StoragePartition* GetStoragePartition() const OVERRIDE;
   virtual bool FastShutdownIfPossible() OVERRIDE;
   virtual void DumpHandles() OVERRIDE;
   virtual base::ProcessHandle GetHandle() const OVERRIDE;
   virtual TransportDIB* GetTransportDIB(TransportDIB::Id dib_id) OVERRIDE;
   virtual TransportDIB* MapTransportDIB(TransportDIB::Id dib_id) OVERRIDE;
   virtual BrowserContext* GetBrowserContext() const OVERRIDE;
   virtual bool InSameStoragePartition(
       StoragePartition* partition) const OVERRIDE;
   virtual int GetID() const OVERRIDE;
   virtual bool HasConnection() const OVERRIDE;
-  virtual RenderWidgetHost* GetRenderWidgetHostByID(int routing_id)
-      OVERRIDE;
   virtual void SetIgnoreInputEvents(bool ignore_input_events) OVERRIDE;
   virtual bool IgnoreInputEvents() const OVERRIDE;
-  virtual void Attach(RenderWidgetHost* host, int routing_id)
-      OVERRIDE;
-  virtual void Release(int routing_id) OVERRIDE;
   virtual void Cleanup() OVERRIDE;
   virtual void AddPendingView() OVERRIDE;
   virtual void RemovePendingView() OVERRIDE;
   virtual void SetSuddenTerminationAllowed(bool enabled) OVERRIDE;
   virtual bool SuddenTerminationAllowed() const OVERRIDE;
   virtual IPC::ChannelProxy* GetChannel() OVERRIDE;
-  virtual RenderWidgetHostsIterator GetRenderWidgetHostsIterator() OVERRIDE;
   virtual bool FastShutdownForPageCount(size_t count) OVERRIDE;
   virtual bool FastShutdownStarted() const OVERRIDE;
   virtual base::TimeDelta GetChildProcessIdleTime() const OVERRIDE;
   virtual void SurfaceUpdated(int32 surface_id) OVERRIDE;
   virtual void ResumeRequestsForView(int route_id) OVERRIDE;
 
   // IPC::Sender via RenderProcessHost.
   virtual bool Send(IPC::Message* msg) OVERRIDE;
 
   // IPC::Listener via RenderProcessHost.
@@ skipping 58 matching lines @@
       RenderProcessHost* process,
       const GURL& url);
 
   static base::MessageLoop* GetInProcessRendererThreadForTesting();
 
  protected:
   // A proxy for our IPC::Channel that lives on the IO thread (see
   // browser_process.h)
   scoped_ptr<IPC::ChannelProxy> channel_;
 
-  // The registered render widget hosts. When this list is empty or all NULL,
-  // we should delete ourselves
-  IDMap<RenderWidgetHost> render_widget_hosts_;
-
   // True if fast shutdown has been performed on this RPH.
   bool fast_shutdown_started_;
 
   // True if we've posted a DeleteTask and will be deleted soon.
   bool deleting_soon_;
 
   // The count of currently swapped out but pending RenderViews.  We have
   // started to swap these in, so the renderer process should not exit if
   // this count is non-zero.
   int32 pending_views_;
@@ skipping 26 matching lines @@
                                              CommandLine* renderer_cmd) const;
 
   // Callers can reduce the RenderProcess' priority.
   void SetBackgrounded(bool backgrounded);
 
   // Handle termination of our process.
   void ProcessDied(bool already_dead);
 
   virtual void OnGpuSwitching() OVERRIDE;
 
+  // The registered IPC listener objects. When this list is empty, we should
+  // delete ourselves.
+  IDMap<IPC::Listener> listeners_;
+
   // The count of currently visible widgets.  Since the host can be a container
   // for multiple widgets, it uses this count to determine when it should be
   // backgrounded.
   int32 visible_widgets_;
 
   // Does this process have backgrounded priority.
   bool backgrounded_;
 
   // Used to allow a RenderWidgetHost to intercept various messages on the
   // IO thread.
@@ skipping 82 matching lines @@
   // Prevents the class from being added as a GpuDataManagerImpl observer more
   // than once.
   bool gpu_observer_registered_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_