Privatize StrongBinding lifetime management

content/browser/wake_lock/wake_lock_service_context.cc

 // Copyright 2015 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/browser/wake_lock/wake_lock_service_context.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "build/build_config.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "device/power_save_blocker/power_save_blocker.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace content {
 
 WakeLockServiceContext::WakeLockServiceContext(WebContents* web_contents)
     : WebContentsObserver(web_contents), weak_factory_(this) {}
 
 WakeLockServiceContext::~WakeLockServiceContext() {}
 
 void WakeLockServiceContext::CreateService(
     int render_process_id,
     int render_frame_id,
     mojo::InterfaceRequest<blink::mojom::WakeLockService> request) {
-  new WakeLockServiceImpl(weak_factory_.GetWeakPtr(), render_process_id,
-                          render_frame_id, std::move(request));
+  mojo::MakeStrongBinding(
+      base::MakeUnique<WakeLockServiceImpl>(weak_factory_.GetWeakPtr(),
+                                            render_process_id, render_frame_id),
+      std::move(request));
 }
 
 void WakeLockServiceContext::RenderFrameDeleted(
     RenderFrameHost* render_frame_host) {
   CancelWakeLock(render_frame_host->GetProcess()->GetID(),
                  render_frame_host->GetRoutingID());
 }
 
 void WakeLockServiceContext::WebContentsDestroyed() {
 #if defined(OS_ANDROID)
@@ skipping 53 matching lines @@
   if (!frames_requesting_lock_.empty()) {
     if (!wake_lock_)
       CreateWakeLock();
   } else {
     if (wake_lock_)
       RemoveWakeLock();
   }
 }
 
 }  // namespace content