Move MediaDrmBridge provision communication to native side.

media/base/android/media_drm_bridge.h

Index: media/base/android/media_drm_bridge.h
diff --git a/media/base/android/media_drm_bridge.h b/media/base/android/media_drm_bridge.h
index ac73758142c0c9a1dce0c32748797cbb6c691a7d..8f60c2b52922900a90e997b2e04fe21f351aa369 100644
--- a/media/base/android/media_drm_bridge.h
+++ b/media/base/android/media_drm_bridge.h
@@ -32,6 +32,8 @@ namespace media {
 // called on the |task_runner_| except for the PlayerTracker methods and
 // SetMediaCryptoReadyCB(), which can be called on any thread.
 
+class ProvisionFetcher;
+
 class MEDIA_EXPORT MediaDrmBridge : public MediaKeys, public PlayerTracker {
  public:
   // TODO(ddorwin): These are specific to Widevine. http://crbug.com/459400
@@ -77,6 +79,7 @@ class MEDIA_EXPORT MediaDrmBridge : public MediaKeys, public PlayerTracker {
   // TODO(xhwang): Is it okay not to update session expiration info?
   static scoped_refptr<MediaDrmBridge> Create(
       const std::string& key_system,
+      scoped_ptr<ProvisionFetcher> provision_fetcher,
       const SessionMessageCB& session_message_cb,
       const SessionClosedCB& session_closed_cb,
       const LegacySessionErrorCB& legacy_session_error_cb,
@@ -87,7 +90,8 @@ class MEDIA_EXPORT MediaDrmBridge : public MediaKeys, public PlayerTracker {
   // otherwise. No session callbacks are provided. This is used when we need to
   // use MediaDrmBridge without creating any sessions.
   static scoped_refptr<MediaDrmBridge> CreateWithoutSessionSupport(
-      const std::string& key_system);
+      const std::string& key_system,
+      scoped_ptr<ProvisionFetcher> provision_fetcher);
 
   // MediaKeys implementation.
   void SetServerCertificate(
@@ -159,6 +163,12 @@ class MEDIA_EXPORT MediaDrmBridge : public MediaKeys, public PlayerTracker {
   // Called by Java after a MediaCrypto object is created.
   void OnMediaCryptoReady(JNIEnv* env, jobject j_media_drm);
 
+  // Called by Java when we need to send a provisioning request,
+  void OnStartProvisioning(JNIEnv* env,
+                           jobject j_media_drm,
+                           jstring j_default_url,
+                           jbyteArray j_request_data);
+
   // Callbacks to resolve the promise for |promise_id|.
   void OnPromiseResolved(JNIEnv* env, jobject j_media_drm, jint j_promise_id);
   void OnPromiseResolvedWithSession(JNIEnv* env,
@@ -221,6 +231,7 @@ class MEDIA_EXPORT MediaDrmBridge : public MediaKeys, public PlayerTracker {
   friend class base::DeleteHelper<MediaDrmBridge>;
 
   MediaDrmBridge(const std::vector<uint8>& scheme_uuid,
+                 scoped_ptr<ProvisionFetcher> provision_fetcher,
                  const SessionMessageCB& session_message_cb,
                  const SessionClosedCB& session_closed_cb,
                  const LegacySessionErrorCB& legacy_session_error_cb,
@@ -238,12 +249,23 @@ class MEDIA_EXPORT MediaDrmBridge : public MediaKeys, public PlayerTracker {
   // run this callback.
   void NotifyMediaCryptoReady(const MediaCryptoReadyCB& cb);
 
+  // Sends HTTP provisioning request to a provisioning server.
+  void SendProvisioningRequest(const std::string& default_url,
+                               const std::string& request_data);
+
+  // Process the data received by provisioning server.
+  void ProcessProvisionResponse(bool success, const std::string& response);
+
   // UUID of the key system.
   std::vector<uint8> scheme_uuid_;
 
   // Java MediaDrm instance.
   base::android::ScopedJavaGlobalRef<jobject> j_media_drm_;
 
+  // The object that requests and receives provisioning data.
+  // Exists for the duration of one request/response only.

[xhwang, 2015/11/12 22:27:03]

What does this mean? Isn't |provision_fetcher_| always non-null during the
lifetime of |this|?

[Tima Vaisburd, 2015/11/13 03:13:10]

Yes, this was my mistake. Removed the line.

+  scoped_ptr<ProvisionFetcher> provision_fetcher_;
+
   // Callbacks for firing session events.
   SessionMessageCB session_message_cb_;
   SessionClosedCB session_closed_cb_;