Move MediaDrmBridge provision communication to native side.

chrome/browser/media/android/cdm/media_drm_credential_manager.h

Index: chrome/browser/media/android/cdm/media_drm_credential_manager.h
diff --git a/chrome/browser/media/android/cdm/media_drm_credential_manager.h b/chrome/browser/media/android/cdm/media_drm_credential_manager.h
index 5bf88eb6545e682e2ee841c44ca602a1ed1f2b62..4328734ac55a326863164dd98188bda5a44249ef 100644
--- a/chrome/browser/media/android/cdm/media_drm_credential_manager.h
+++ b/chrome/browser/media/android/cdm/media_drm_credential_manager.h
@@ -12,6 +12,7 @@
 #include "base/macros.h"
 #include "base/memory/singleton.h"
 #include "media/base/android/media_drm_bridge.h"
+#include "media/base/android/provision_fetcher.h"
 
 // This class manages the media DRM credentials on Android.
 class MediaDrmCredentialManager {
@@ -53,6 +54,10 @@ class MediaDrmCredentialManager {
   // The MediaDrmBridge object used to perform the credential reset.
   scoped_refptr<media::MediaDrmBridge> media_drm_bridge_;
 
+  // The factory that creates ProvisionFetcher object that are used in the
+  // process of device provisioning.
+  scoped_ptr<media::ProvisionFetcherFactory> provision_fetcher_factory_;
+
   // The callback provided by the caller.
   ResetCredentialsCB reset_credentials_cb_;