Privatize StrongBinding lifetime management

content/browser/media/android/provision_fetcher_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_MEDIA_ANDROID_PROVISION_FETCHER_IMPL_H_
 #define CONTENT_BROWSER_MEDIA_ANDROID_PROVISION_FETCHER_IMPL_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/public/browser/android/provision_fetcher_factory.h"
 #include "media/base/android/provision_fetcher.h"
 #include "media/mojo/interfaces/provision_fetcher.mojom.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace content {
 
 class RenderFrameHost;
 
 // A media::mojom::ProvisionFetcher implementation based on
 // media::ProvisionFetcher.
 class ProvisionFetcherImpl : public media::mojom::ProvisionFetcher {
  public:
-  static void Create(
-      RenderFrameHost* render_frame_host,
-      mojo::InterfaceRequest<media::mojom::ProvisionFetcher> request);
+  static void Create(RenderFrameHost* render_frame_host,
+                     media::mojom::ProvisionFetcherRequest request);
 
-  ProvisionFetcherImpl(
-      std::unique_ptr<media::ProvisionFetcher> provision_fetcher,
-      mojo::InterfaceRequest<ProvisionFetcher> request);
+  explicit ProvisionFetcherImpl(
+      std::unique_ptr<media::ProvisionFetcher> provision_fetcher);
   ~ProvisionFetcherImpl() override;
 
   // media::mojom::ProvisionFetcher implementation.
   void Retrieve(const mojo::String& default_url,
                 const mojo::String& request_data,
                 const RetrieveCallback& callback) final;
 
  private:
   // Callback for media::ProvisionFetcher::Retrieve().
   void OnResponse(const RetrieveCallback& callback,
                   bool success,
                   const std::string& response);
 
-  mojo::StrongBinding<media::mojom::ProvisionFetcher> binding_;
   std::unique_ptr<media::ProvisionFetcher> provision_fetcher_;
 
   base::WeakPtrFactory<ProvisionFetcherImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProvisionFetcherImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_PROVISION_FETCHER_IMPL_H_