Privatize StrongBinding lifetime management

content/browser/wake_lock/wake_lock_service_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 #include "third_party/WebKit/public/platform/modules/wake_lock/wake_lock_service.mojom.h"
 
 namespace content {
 
 class WakeLockServiceContext;
 
 class WakeLockServiceImpl : public blink::mojom::WakeLockService {
  public:
-  WakeLockServiceImpl(
-      base::WeakPtr<WakeLockServiceContext> context,
-      int render_process_id,
-      int render_frame_id,
-      mojo::InterfaceRequest<blink::mojom::WakeLockService> request);
+  WakeLockServiceImpl(base::WeakPtr<WakeLockServiceContext> context,
+                      int render_process_id,
+                      int render_frame_id);
   ~WakeLockServiceImpl() override;
 
   // WakeLockSevice implementation.
   void RequestWakeLock() override;
   void CancelWakeLock() override;
 
  private:
   base::WeakPtr<WakeLockServiceContext> context_;
   const int render_process_id_;
   const int render_frame_id_;
-  mojo::StrongBinding<blink::mojom::WakeLockService> binding_;
 
   DISALLOW_COPY_AND_ASSIGN(WakeLockServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WAKE_LOCK_WAKE_LOCK_SERVICE_IMPL_H_