Move MediaDrmBridge provision communication to native side.

chrome/browser/android/chrome_media_client_android.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_ANDROID_CHROME_MEDIA_CLIENT_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_CHROME_MEDIA_CLIENT_ANDROID_H_
 
 #include "base/macros.h"
 #include "components/cdm/browser/widevine_drm_delegate_android.h"
 #include "media/base/android/media_client_android.h"
 
 class ChromeMediaClientAndroid : public media::MediaClientAndroid {
  public:
   ChromeMediaClientAndroid();
   ~ChromeMediaClientAndroid() override;
 
+  // media::MediaClientAndroid implementation:
+  scoped_ptr<media::ProvisionFetcher> CreateDefaultFetcher() const override;

[xhwang, 2015/11/06 23:08:18]

naming nit: CreateProvisionFetcher would be more explicit.

But here we'll always use the active user's profile, which could be easily
misused when handling requests from other profiles.

Since this is only used by MediaDrmCredentialManager, and
MediaDrmCredentialManager is only used by chrome/. Can we just move
MediaDrmCredentialManager to chrome/ to avoid exposing at all?

[Tima Vaisburd, 2015/11/11 03:03:33]

Done move.

+
  private:
   // media::MediaClientAndroid implementation:
   media::MediaDrmBridgeDelegate* GetMediaDrmBridgeDelegate(
       const std::vector<uint8_t>& scheme_uuid) override;
 
   cdm::WidevineDrmDelegateAndroid widevine_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeMediaClientAndroid);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_CHROME_MEDIA_CLIENT_ANDROID_H_