Revert of media: Add ProvisionFetcher mojo interface and implementation.

media/mojo/services/mojo_provision_fetcher.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 MEDIA_MOJO_SERVICES_MOJO_PROVISION_FETCHER_H_
-#define MEDIA_MOJO_SERVICES_MOJO_PROVISION_FETCHER_H_
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "media/base/android/provision_fetcher.h"
-#include "media/mojo/interfaces/provision_fetcher.mojom.h"
-
-namespace media {
-
-// A ProvisionFetcher that proxies to a interfaces::ProvisionFetcherPtr.
-class MojoProvisionFetcher : public ProvisionFetcher {
- public:
-  explicit MojoProvisionFetcher(
-      interfaces::ProvisionFetcherPtr provision_fetcher_ptr);
-  ~MojoProvisionFetcher() final;
-
-  // ProvisionFetcher implementation:
-  void Retrieve(const std::string& default_url,
-                const std::string& request_data,
-                const ResponseCB& response_cb) final;
-
- private:
-  // Callback for interfaces::ProvisionFetcherPtr::Retrieve().
-  void OnResponse(const ResponseCB& response_cb,
-                  bool success,
-                  const std::string& response);
-
-  interfaces::ProvisionFetcherPtr provision_fetcher_ptr_;
-
-  base::WeakPtrFactory<MojoProvisionFetcher> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(MojoProvisionFetcher);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_MOJO_SERVICES_MOJO_PROVISION_FETCHER_H_