Move all ProvisionFetcher classes out of android/ subdirectories.

content/browser/media/android/url_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 CONTENT_BROWSER_MEDIA_ANDROID_URL_PROVISION_FETCHER_H_
-#define CONTENT_BROWSER_MEDIA_ANDROID_URL_PROVISION_FETCHER_H_
-
-#include "base/macros.h"
-#include "media/base/android/provision_fetcher.h"
-#include "net/url_request/url_fetcher.h"
-#include "net/url_request/url_fetcher_delegate.h"
-
-namespace content {
-
-// The ProvisionFetcher that retrieves the data by HTTP POST request.
-
-class URLProvisionFetcher : public media::ProvisionFetcher,
-                            public net::URLFetcherDelegate {
- public:
-  explicit URLProvisionFetcher(net::URLRequestContextGetter* context_getter);
-  ~URLProvisionFetcher() override;
-
-  // media::ProvisionFetcher implementation.
-  void Retrieve(const std::string& default_url,
-                const std::string& request_data,
-                const ProvisionFetcher::ResponseCB& response_cb) override;
-
- private:
-  // net::URLFetcherDelegate implementation.
-  void OnURLFetchComplete(const net::URLFetcher* source) override;
-
-  net::URLRequestContextGetter* context_getter_;
-  std::unique_ptr<net::URLFetcher> request_;
-  media::ProvisionFetcher::ResponseCB response_cb_;
-
-  DISALLOW_COPY_AND_ASSIGN(URLProvisionFetcher);
-};
-
-}  // namespace content
-
-#endif  // CHROME_BROWSER_MEDIA_ANDROID_URL_PROVISION_FETCHER_H_