Move MediaDrmBridge provision communication to native side.

chrome/browser/android/chrome_media_client_android.cc

 // 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.
 
 #include "chrome/browser/android/chrome_media_client_android.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_manager.h"
+
+#include "content/public/browser/android/cdm_provision_fetcher.h"
+
+#include "media/base/provision_fetcher.h"
 
 ChromeMediaClientAndroid::ChromeMediaClientAndroid() {
 }
 
 ChromeMediaClientAndroid::~ChromeMediaClientAndroid() {
 }
 
+scoped_ptr<media::ProvisionFetcher>
+ChromeMediaClientAndroid::CreateDefaultFetcher() const {
+  // Use URL context for the active user profile.
+  Profile* profile = ProfileManager::GetActiveUserProfile();

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

The call GetActiveUserProfile() is what I am concerned about. See offline
bug/email.

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

Changed to ProfileManager::GetLastusedProfile() (in MediaDrmCredentialManager)

+  net::URLRequestContextGetter* context = profile->GetRequestContext();
+
+  return content::CDMProvisionFetcher::CreateWithURLContext(context);
+}
+
 media::MediaDrmBridgeDelegate*
 ChromeMediaClientAndroid::GetMediaDrmBridgeDelegate(
     const std::vector<uint8_t>& scheme_uuid) {
   if (scheme_uuid == widevine_delegate_.GetUUID())
     return &widevine_delegate_;
   return nullptr;
 }