Migrate RenderFrameImpl to use BinderRegistry.

services/service_manager/public/cpp/binder_registry.h

 // Copyright 2016 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 SERVICES_SERVICE_MANAGER_PUBLIC_CPP_BINDER_REGISTRY_H_
 #define SERVICES_SERVICE_MANAGER_PUBLIC_CPP_BINDER_REGISTRY_H_
 
 #include <map>
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
+#include "base/memory/weak_ptr.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 #include "services/service_manager/public/cpp/interface_factory.h"
 #include "services/service_manager/public/cpp/lib/callback_binder.h"
 #include "services/service_manager/public/cpp/lib/interface_factory_binder.h"
 
 namespace service_manager {
 
 class Identity;
 class InterfaceBinder;
 
@@ skipping 41 matching lines @@
 
   // Returns true if an InterfaceBinder is registered for |interface_name|.
   bool CanBindInterface(const std::string& interface_name) const;
 
   // Completes binding the request for |interface_name| on |interface_pipe|, by
   // invoking the corresponding InterfaceBinder.
   void BindInterface(const Identity& remote_identity,
                      const std::string& interface_name,
                      mojo::ScopedMessagePipeHandle interface_pipe);
 
+  base::WeakPtr<BinderRegistry> GetWeakPtr();
+
  private:
   using InterfaceNameToBinderMap =
       std::map<std::string, std::unique_ptr<InterfaceBinder>>;
 
   // Adds |binder| to the internal map.
   void SetInterfaceBinder(const std::string& interface_name,
                           std::unique_ptr<InterfaceBinder> binder);
 
   InterfaceNameToBinderMap binders_;
 
+  base::WeakPtrFactory<BinderRegistry> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(BinderRegistry);
 };
 
 
 }  // namespace service_manager
 
 #endif  // SERVICES_SERVICE_MANAGER_PUBLIC_CPP_BINDER_REGISTRY_H_