Update SupportsUserData uses with unique_ptr.

content/renderer/mojo_bindings_controller.cc

 // Copyright 2014 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 "content/renderer/mojo_bindings_controller.h"
 
+#include "base/memory/ptr_util.h"
 #include "content/common/view_messages.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_view.h"
 #include "content/renderer/mojo_context_state.h"
 #include "gin/per_context_data.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "v8/include/v8.h"
 
@@ skipping 16 matching lines @@
       bindings_type_(bindings_type) {}
 
 MojoBindingsController::~MojoBindingsController() {
 }
 
 void MojoBindingsController::CreateContextState() {
   v8::HandleScope handle_scope(blink::MainThreadIsolate());
   blink::WebLocalFrame* frame = render_frame()->GetWebFrame();
   v8::Local<v8::Context> context = frame->MainWorldScriptContext();
   gin::PerContextData* context_data = gin::PerContextData::From(context);
-  MojoContextStateData* data = new MojoContextStateData;
+  auto data = base::MakeUnique<MojoContextStateData>();
   data->state.reset(new MojoContextState(frame, context, bindings_type_));
-  context_data->SetUserData(kMojoContextStateKey, data);
+  context_data->SetUserData(kMojoContextStateKey, std::move(data));
 }
 
 void MojoBindingsController::DestroyContextState(
     v8::Local<v8::Context> context) {
   gin::PerContextData* context_data = gin::PerContextData::From(context);
   if (!context_data)
     return;
   context_data->RemoveUserData(kMojoContextStateKey);
 }
 
@@ skipping 40 matching lines @@
 
   v8::HandleScope handle_scope(blink::MainThreadIsolate());
   DestroyContextState(render_frame()->GetWebFrame()->MainWorldScriptContext());
 }
 
 void MojoBindingsController::OnDestruct() {
   delete this;
 }
 
 }  // namespace content