Change RenderFrame to use InterfaceRegistry et al.

services/shell/public/cpp/lib/interface_provider.cc

+// 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.
+
+#include "services/shell/public/cpp/interface_provider.h"
+
+namespace shell {
+
+InterfaceProvider::InterfaceProvider(
+    mojom::InterfaceProviderPtr interface_provider)
+    : interface_provider_(std::move(interface_provider)),
+      weak_factory_(this) {}
+InterfaceProvider::~InterfaceProvider() {}
+
+void InterfaceProvider::SetConnectionLostClosure(
+    const base::Closure& connection_lost_closure) {
+  interface_provider_.set_connection_error_handler(connection_lost_closure);
+}
+
+base::WeakPtr<InterfaceProvider> InterfaceProvider::GetWeakPtr() {
+  return weak_factory_.GetWeakPtr();
+}
+
+void InterfaceProvider::GetInterface(
+    const std::string& name,
+    mojo::ScopedMessagePipeHandle request_handle) {
+  // Local binders can be registered via TestApi.
+  auto it = binders_.find(name);
+  if (it != binders_.end()) {
+    it->second.Run(std::move(request_handle));
+    return;
+  }
+  interface_provider_->GetInterface(name, std::move(request_handle));
+}
+
+void InterfaceProvider::ClearBinders() {
+  binders_.clear();
+}
+
+}  // namespace shell