Renderers should obtain browser InterfaceProvider by connecting to browser

services/shell/public/cpp/interface_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_SHELL_PUBLIC_CPP_INTERFACE_REGISTRY_H_
 #define SERVICES_SHELL_PUBLIC_CPP_INTERFACE_REGISTRY_H_
 
 #include <memory>
 #include <queue>
+#include <set>
 #include <utility>
 
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/shell/public/cpp/lib/callback_binder.h"
 #include "services/shell/public/cpp/lib/interface_factory_binder.h"
 #include "services/shell/public/interfaces/interface_provider.mojom.h"
 
 namespace shell {
@@ skipping 96 matching lines @@
   void RemoveInterface(const std::string& name);
 
   // Temporarily prevent incoming interface requests from being bound. Incoming
   // requests will be queued internally and dispatched once ResumeBinding() is
   // called.
   void PauseBinding();
 
   // Resumes incoming interface request binding.
   void ResumeBinding();
 
+  // Populates a set with the interface names this registry can bind.
+  void GetInterfaceNames(std::set<std::string>* interface_names);
+
  private:
   using NameToInterfaceBinderMap =
       std::map<std::string, std::unique_ptr<InterfaceBinder>>;
 
   // mojom::InterfaceProvider:
   void GetInterface(const mojo::String& interface_name,
                     mojo::ScopedMessagePipeHandle handle) override;
 
   // Returns true if the binder was set, false if it was not set (e.g. by
   // some filtering policy preventing this interface from being exposed).
@@ skipping 17 matching lines @@
       pending_interface_requests_;
 
   base::WeakPtrFactory<InterfaceRegistry> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InterfaceRegistry);
 };
 
 }  // namespace shell
 
 #endif  // SERVICES_SHELL_PUBLIC_CPP_INTERFACE_REGISTRY_H_