Move MediaDrmBridge provision communication to native side.

chrome/browser/media/android/provision/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 CHROME_BROWSER_MEDIA_ANDROID_PROVISION_URL_PROVISION_FETCHER_H_
+#define CHROME_BROWSER_MEDIA_ANDROID_PROVISION_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 media {
+
+// The ProvisionFetcher that retrieves the data by HTTP POST request.
+
+class URLProvisionFetcher : public ProvisionFetcher,
+                            public net::URLFetcherDelegate {
+ public:
+  explicit URLProvisionFetcher(net::URLRequestContextGetter* context);
+  ~URLProvisionFetcher() override;
+
+  // media::ProvisionFetcher implementation.
+  void Retrieve(const std::string& default_url,
+                const std::string& request_data,
+                ResponseCallback cb) override;

[xhwang, 2015/11/02 20:37:04]

nit, see below: s/ResponseCallback cb/const ResponseCB& response_cb/

[Tima Vaisburd, 2015/11/05 02:24:07]

Done.

+
+  // public net::URLFetcherDelegate implementation.
+  void OnURLFetchComplete(const net::URLFetcher* source) override;
+
+ private:
+  net::URLRequestContextGetter* url_request_context_;
+  scoped_ptr<net::URLFetcher> request_;
+  ResponseCallback response_cb_;
+
+  DISALLOW_COPY_AND_ASSIGN(URLProvisionFetcher);
+};
+
+class URLProvisionFetcherFactory : public ProvisionFetcherFactory {
+ public:
+  URLProvisionFetcherFactory() {}
+  ~URLProvisionFetcherFactory() {}
+
+  scoped_ptr<ProvisionFetcher> CreateFetcher() const override;
+};
+
+}  // namespace media
+
+#endif  // CHROME_BROWSER_MEDIA_ANDROID_PROVISION_URL_PROVISION_FETCHER_H_