Support exposing Mojo services between render frames, render threads, and their respective hosts.

content/browser/frame_host/render_frame_host_impl.h

 // Copyright 2013 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_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <map>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
+#include "content/common/mojo/service_registry_impl.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/common/javascript_message_type.h"
 #include "content/public/common/page_transition_types.h"
 #include "third_party/WebKit/public/web/WebTextDirection.h"
 
 class GURL;
 struct FrameHostMsg_DidFailProvisionalLoadWithError_Params;
 struct FrameHostMsg_OpenURL_Params;
 struct FrameMsg_Navigate_Params;
 
@@ skipping 32 matching lines @@
   virtual const std::string& GetFrameName() OVERRIDE;
   virtual bool IsCrossProcessSubframe() OVERRIDE;
   virtual GURL GetLastCommittedURL() OVERRIDE;
   virtual gfx::NativeView GetNativeView() OVERRIDE;
   virtual void ExecuteJavaScript(
       const base::string16& javascript) OVERRIDE;
   virtual void ExecuteJavaScript(
       const base::string16& javascript,
       const JavaScriptResultCallback& callback) OVERRIDE;
   virtual RenderViewHost* GetRenderViewHost() OVERRIDE;
+  virtual ServiceRegistry* GetServiceRegistry() OVERRIDE;
 
   // IPC::Sender
   virtual bool Send(IPC::Message* msg) OVERRIDE;
 
   // IPC::Listener
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 
   void Init();
   int routing_id() const { return routing_id_; }
   void OnCreateChildFrame(int new_routing_id,
@@ skipping 81 matching lines @@
   // Notifies the RenderFrame that the JavaScript message that was shown was
   // closed by the user.
   void JavaScriptDialogClosed(IPC::Message* reply_msg,
                               bool success,
                               const base::string16& user_input,
                               bool dialog_was_suppressed);
 
   // Called when an HTML5 notification is closed.
   void NotificationClosed(int notification_id);
 
+  // Binds this render frame's service registry to a handle to the remote
+  // service registry.
+  void BindServiceRegistry(mojo::ScopedMessagePipeHandle shell_handle);

[darin (slow to review), 2014/06/12 05:27:12]

nit: shell_handle seems like the wrong parameter name here.

[Sam McNally, 2014/06/12 08:56:40]

Done.

+
  protected:
   friend class RenderFrameHostFactory;
 
   // TODO(nasko): Remove dependency on RenderViewHost here. RenderProcessHost
   // should be the abstraction needed here, but we need RenderViewHost to pass
   // into WebContentsObserver::FrameDetached for now.
   RenderFrameHostImpl(RenderViewHostImpl* render_view_host,
                       RenderFrameHostDelegate* delegate,
                       FrameTree* frame_tree,
                       FrameTreeNode* frame_tree_node,
@@ skipping 103 matching lines @@
 
   // Map from notification_id to a callback to cancel them.
   std::map<int, base::Closure> cancel_notification_callbacks_;
 
   int routing_id_;
   bool is_swapped_out_;
 
   // When the last BeforeUnload message was sent.
   base::TimeTicks send_before_unload_start_time_;
 
+  ServiceRegistryImpl service_registry_;
+
   base::WeakPtrFactory<RenderFrameHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_