media: Support unprefixed EME API on Android.

media/base/android/media_drm_bridge.cc

Index: media/base/android/media_drm_bridge.cc
diff --git a/media/base/android/media_drm_bridge.cc b/media/base/android/media_drm_bridge.cc
index 91c08d2033fdb32e6d2a78a90a8edaacfedab030..a89522df7115e8426a6df794cf6d0323f6fd485f 100644
--- a/media/base/android/media_drm_bridge.cc
+++ b/media/base/android/media_drm_bridge.cc
@@ -19,6 +19,7 @@
 #include "base/sys_byteorder.h"
 #include "base/sys_info.h"
 #include "jni/MediaDrmBridge_jni.h"
+#include "media/base/cdm_key_information.h"
 
 #include "widevine_cdm_version.h"  // In SHARED_INTERMEDIATE_DIR.
 
@@ -30,20 +31,34 @@ using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
-static uint32 ReadUint32(const uint8_t* data) {
+namespace {
+
+// DrmBridge supports session expiration event but doesn't provide detailed
+// status for each key ID, which is required by the EME spec. Use a dummy key ID
+// here to report session expiration info.
+const char kDummyKeyId[] = "Dummy Key Id";
+
+uint32 ReadUint32(const uint8_t* data) {
   uint32 value = 0;
   for (int i = 0; i < 4; ++i)
     value = (value << 8) | data[i];
   return value;
 }
 
-static uint64 ReadUint64(const uint8_t* data) {
+uint64 ReadUint64(const uint8_t* data) {
   uint64 value = 0;
   for (int i = 0; i < 8; ++i)
     value = (value << 8) | data[i];
   return value;
 }
 
+// Returns string session ID from jbyteArray (byte[] in Java).
+std::string GetSessionId(JNIEnv* env, jbyteArray j_session_id) {
+  std::vector<uint8> session_id_vector;
+  JavaByteArrayToByteVector(env, j_session_id, &session_id_vector);
+  return std::string(session_id_vector.begin(), session_id_vector.end());
+}
+
 // The structure of an ISO CENC Protection System Specific Header (PSSH) box is
 // as follows. (See ISO/IEC FDIS 23001-7:2011(E).)
 // Note: ISO boxes use big-endian values.
@@ -70,58 +85,6 @@ const uint8 kWidevineUuid[16] = {
 
 typedef std::vector<uint8> UUID;
 
-class KeySystemUuidManager {
- public:
-  KeySystemUuidManager();
-  UUID GetUUID(const std::string& key_system);
-  void AddMapping(const std::string& key_system, const UUID& uuid);
-  std::vector<std::string> GetPlatformKeySystemNames();
-
- private:
-  typedef base::hash_map<std::string, UUID> KeySystemUuidMap;
-
-  KeySystemUuidMap key_system_uuid_map_;
-
-  DISALLOW_COPY_AND_ASSIGN(KeySystemUuidManager);
-};
-
-KeySystemUuidManager::KeySystemUuidManager() {
-  // Widevine is always supported in Android.
-  key_system_uuid_map_[kWidevineKeySystem] =
-      UUID(kWidevineUuid, kWidevineUuid + arraysize(kWidevineUuid));
-}
-
-UUID KeySystemUuidManager::GetUUID(const std::string& key_system) {
-  KeySystemUuidMap::iterator it = key_system_uuid_map_.find(key_system);
-  if (it == key_system_uuid_map_.end())
-    return UUID();
-  return it->second;
-}
-
-void KeySystemUuidManager::AddMapping(const std::string& key_system,
-                                      const UUID& uuid) {
-  KeySystemUuidMap::iterator it = key_system_uuid_map_.find(key_system);
-  DCHECK(it == key_system_uuid_map_.end())
-      << "Shouldn't overwrite an existing key system.";
-  if (it != key_system_uuid_map_.end())
-    return;
-  key_system_uuid_map_[key_system] = uuid;
-}
-
-std::vector<std::string> KeySystemUuidManager::GetPlatformKeySystemNames() {
-  std::vector<std::string> key_systems;
-  for (KeySystemUuidMap::iterator it = key_system_uuid_map_.begin();
-       it != key_system_uuid_map_.end(); ++it) {
-    // Rule out the key system handled by Chrome explicitly.
-    if (it->first != kWidevineKeySystem)
-      key_systems.push_back(it->first);
-  }
-  return key_systems;
-}
-
-base::LazyInstance<KeySystemUuidManager>::Leaky g_key_system_uuid_manager =
-    LAZY_INSTANCE_INITIALIZER;
-
 // Tries to find a PSSH box whose "SystemId" is |uuid| in |data|, parses the
 // "Data" of the box and put it in |pssh_data|. Returns true if such a box is
 // found and successfully parsed. Returns false otherwise.
@@ -129,9 +92,10 @@ base::LazyInstance<KeySystemUuidManager>::Leaky g_key_system_uuid_manager =
 // 1, If multiple PSSH boxes are found,the "Data" of the first matching PSSH box
 // will be set in |pssh_data|.
 // 2, Only PSSH and TENC boxes are allowed in |data|. TENC boxes are skipped.
-static bool GetPsshData(const uint8* data, int data_size,
-                        const UUID& uuid,
-                        std::vector<uint8>* pssh_data) {
+bool GetPsshData(const uint8* data,
+                 int data_size,
+                 const UUID& uuid,
+                 std::vector<uint8>* pssh_data) {
   const uint8* cur = data;
   const uint8* data_end = data + data_size;
   int bytes_left = data_size;
@@ -206,37 +170,65 @@ static bool GetPsshData(const uint8* data, int data_size,
   return false;
 }
 
-static MediaDrmBridge::SecurityLevel GetSecurityLevelFromString(
-    const std::string& security_level_str) {
-  if (0 == security_level_str.compare("L1"))
-    return MediaDrmBridge::SECURITY_LEVEL_1;
-  if (0 == security_level_str.compare("L3"))
-    return MediaDrmBridge::SECURITY_LEVEL_3;
-  DCHECK(security_level_str.empty());
-  return MediaDrmBridge::SECURITY_LEVEL_NONE;
+class KeySystemUuidManager {
+ public:
+  KeySystemUuidManager();
+  UUID GetUUID(const std::string& key_system);
+  void AddMapping(const std::string& key_system, const UUID& uuid);
+  std::vector<std::string> GetPlatformKeySystemNames();
+
+ private:
+  typedef base::hash_map<std::string, UUID> KeySystemUuidMap;
+
+  KeySystemUuidMap key_system_uuid_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(KeySystemUuidManager);
+};
+
+KeySystemUuidManager::KeySystemUuidManager() {
+  // Widevine is always supported in Android.
+  key_system_uuid_map_[kWidevineKeySystem] =
+      UUID(kWidevineUuid, kWidevineUuid + arraysize(kWidevineUuid));
 }
 
-static std::string GetSecurityLevelString(
-    MediaDrmBridge::SecurityLevel security_level) {
-  switch (security_level) {
-    case MediaDrmBridge::SECURITY_LEVEL_NONE:
-      return "";
-    case MediaDrmBridge::SECURITY_LEVEL_1:
-      return "L1";
-    case MediaDrmBridge::SECURITY_LEVEL_3:
-      return "L3";
+UUID KeySystemUuidManager::GetUUID(const std::string& key_system) {
+  KeySystemUuidMap::iterator it = key_system_uuid_map_.find(key_system);
+  if (it == key_system_uuid_map_.end())
+    return UUID();
+  return it->second;
+}
+
+void KeySystemUuidManager::AddMapping(const std::string& key_system,
+                                      const UUID& uuid) {
+  KeySystemUuidMap::iterator it = key_system_uuid_map_.find(key_system);
+  DCHECK(it == key_system_uuid_map_.end())
+      << "Shouldn't overwrite an existing key system.";
+  if (it != key_system_uuid_map_.end())
+    return;
+  key_system_uuid_map_[key_system] = uuid;
+}
+
+std::vector<std::string> KeySystemUuidManager::GetPlatformKeySystemNames() {
+  std::vector<std::string> key_systems;
+  for (KeySystemUuidMap::iterator it = key_system_uuid_map_.begin();
+       it != key_system_uuid_map_.end(); ++it) {
+    // Rule out the key system handled by Chrome explicitly.
+    if (it->first != kWidevineKeySystem)
+      key_systems.push_back(it->first);
   }
-  return "";
+  return key_systems;
 }
 
+base::LazyInstance<KeySystemUuidManager>::Leaky g_key_system_uuid_manager =
+    LAZY_INSTANCE_INITIALIZER;
+
 // Checks whether |key_system| is supported with |container_mime_type|. Only
 // checks |key_system| support if |container_mime_type| is empty.
 // TODO(xhwang): The |container_mime_type| is not the same as contentType in
 // the EME spec. Revisit this once the spec issue with initData type is
 // resolved.
-static bool IsKeySystemSupportedWithTypeImpl(
-    const std::string& key_system,
-    const std::string& container_mime_type) {
+bool IsKeySystemSupportedWithTypeImpl(const std::string& key_system,
+                                      const std::string& container_mime_type) {
   if (!MediaDrmBridge::IsAvailable())
     return false;
 
@@ -253,6 +245,42 @@ static bool IsKeySystemSupportedWithTypeImpl(
       env, j_scheme_uuid.obj(), j_container_mime_type.obj());
 }
 
+MediaDrmBridge::SecurityLevel GetSecurityLevelFromString(
+    const std::string& security_level_str) {
+  if (0 == security_level_str.compare("L1"))
+    return MediaDrmBridge::SECURITY_LEVEL_1;
+  if (0 == security_level_str.compare("L3"))
+    return MediaDrmBridge::SECURITY_LEVEL_3;
+  DCHECK(security_level_str.empty());
+  return MediaDrmBridge::SECURITY_LEVEL_NONE;
+}
+
+std::string GetSecurityLevelString(
+    MediaDrmBridge::SecurityLevel security_level) {
+  switch (security_level) {
+    case MediaDrmBridge::SECURITY_LEVEL_NONE:
+      return "";
+    case MediaDrmBridge::SECURITY_LEVEL_1:
+      return "L1";
+    case MediaDrmBridge::SECURITY_LEVEL_3:
+      return "L3";
+  }
+  return "";
+}
+
+}  // namespace
+
+// Called by Java.
+static void AddKeySystemUuidMapping(JNIEnv* env,
+                                    jclass clazz,
+                                    jstring j_key_system,
+                                    jobject j_buffer) {
+  std::string key_system = ConvertJavaStringToUTF8(env, j_key_system);
+  uint8* buffer = static_cast<uint8*>(env->GetDirectBufferAddress(j_buffer));
+  UUID uuid(buffer, buffer + 16);
+  g_key_system_uuid_manager.Get().AddMapping(key_system, uuid);
+}
+
 // static
 bool MediaDrmBridge::IsAvailable() {
   if (base::android::BuildInfo::GetInstance()->sdk_int() < 19)
@@ -283,22 +311,13 @@ bool MediaDrmBridge::IsSecurityLevelSupported(const std::string& key_system,
     return false;
 
   scoped_ptr<MediaDrmBridge> media_drm_bridge =
-      MediaDrmBridge::CreateSessionless(key_system);
+      MediaDrmBridge::CreateWithoutSessionSupport(key_system);
   if (!media_drm_bridge)
     return false;
 
   return media_drm_bridge->SetSecurityLevel(security_level);
 }
 
-static void AddKeySystemUuidMapping(JNIEnv* env, jclass clazz,
-                                    jstring j_key_system,
-                                    jobject j_buffer) {
-  std::string key_system = ConvertJavaStringToUTF8(env, j_key_system);
-  uint8* buffer = static_cast<uint8*>(env->GetDirectBufferAddress(j_buffer));
-  UUID uuid(buffer, buffer + 16);
-  g_key_system_uuid_manager.Get().AddMapping(key_system, uuid);
-}
-
 // static
 std::vector<std::string> MediaDrmBridge::GetPlatformKeySystemNames() {
   return g_key_system_uuid_manager.Get().GetPlatformKeySystemNames();
@@ -322,18 +341,17 @@ bool MediaDrmBridge::RegisterMediaDrmBridge(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
-MediaDrmBridge::MediaDrmBridge(const std::vector<uint8>& scheme_uuid,
-                               const SessionCreatedCB& session_created_cb,
-                               const SessionMessageCB& session_message_cb,
-                               const SessionReadyCB& session_ready_cb,
-                               const SessionClosedCB& session_closed_cb,
-                               const SessionErrorCB& session_error_cb)
+MediaDrmBridge::MediaDrmBridge(
+    const std::vector<uint8>& scheme_uuid,
+    const SessionMessageCB& session_message_cb,
+    const SessionClosedCB& session_closed_cb,
+    const SessionErrorCB& session_error_cb,
+    const SessionKeysChangeCB& session_keys_change_cb)
     : scheme_uuid_(scheme_uuid),
-      session_created_cb_(session_created_cb),
       session_message_cb_(session_message_cb),
-      session_ready_cb_(session_ready_cb),
       session_closed_cb_(session_closed_cb),
-      session_error_cb_(session_error_cb) {
+      session_error_cb_(session_error_cb),
+      session_keys_change_cb_(session_keys_change_cb) {
   JNIEnv* env = AttachCurrentThread();
   CHECK(env);
 
@@ -351,13 +369,14 @@ MediaDrmBridge::~MediaDrmBridge() {
 }
 
 // static
+// TODO(xhwang): Enable SessionExpirationUpdateCB when it is supported.
 scoped_ptr<MediaDrmBridge> MediaDrmBridge::Create(
     const std::string& key_system,
-    const SessionCreatedCB& session_created_cb,
     const SessionMessageCB& session_message_cb,
-    const SessionReadyCB& session_ready_cb,
     const SessionClosedCB& session_closed_cb,
-    const SessionErrorCB& session_error_cb) {
+    const SessionErrorCB& session_error_cb,
+    const SessionKeysChangeCB& session_keys_change_cb,
+    const SessionExpirationUpdateCB& /* session_expiration_update_cb */) {
   scoped_ptr<MediaDrmBridge> media_drm_bridge;
   if (!IsAvailable())
     return media_drm_bridge.Pass();
@@ -366,12 +385,9 @@ scoped_ptr<MediaDrmBridge> MediaDrmBridge::Create(
   if (scheme_uuid.empty())
     return media_drm_bridge.Pass();
 
-  media_drm_bridge.reset(new MediaDrmBridge(scheme_uuid,
-                                            session_created_cb,
-                                            session_message_cb,
-                                            session_ready_cb,
-                                            session_closed_cb,
-                                            session_error_cb));
+  media_drm_bridge.reset(new MediaDrmBridge(scheme_uuid, session_message_cb,
+                                            session_closed_cb, session_error_cb,
+                                            session_keys_change_cb));
 
   if (media_drm_bridge->j_media_drm_.is_null())
     media_drm_bridge.reset();
@@ -380,14 +396,11 @@ scoped_ptr<MediaDrmBridge> MediaDrmBridge::Create(
 }
 
 // static
-scoped_ptr<MediaDrmBridge> MediaDrmBridge::CreateSessionless(
+scoped_ptr<MediaDrmBridge> MediaDrmBridge::CreateWithoutSessionSupport(
     const std::string& key_system) {
-  return MediaDrmBridge::Create(key_system,
-                                SessionCreatedCB(),
-                                SessionMessageCB(),
-                                SessionReadyCB(),
-                                SessionClosedCB(),
-                                SessionErrorCB());
+  return MediaDrmBridge::Create(
+      key_system, SessionMessageCB(), SessionClosedCB(), SessionErrorCB(),
+      SessionKeysChangeCB(), SessionExpirationUpdateCB());
 }
 
 bool MediaDrmBridge::SetSecurityLevel(SecurityLevel security_level) {
@@ -403,27 +416,42 @@ bool MediaDrmBridge::SetSecurityLevel(SecurityLevel security_level) {
       env, j_media_drm_.obj(), j_security_level.obj());
 }
 
-bool MediaDrmBridge::CreateSession(uint32 session_id,
-                                   const std::string& content_type,
-                                   const uint8* init_data,
-                                   int init_data_length) {
+void MediaDrmBridge::SetServerCertificate(
+    const uint8* certificate_data,
+    int certificate_data_length,
+    scoped_ptr<media::SimpleCdmPromise> promise) {
+  promise->reject(NOT_SUPPORTED_ERROR, 0,
+                  "SetServerCertificate() is not supported.");
+}
+
+void MediaDrmBridge::CreateSessionAndGenerateRequest(
+    SessionType session_type,
+    const std::string& init_data_type,
+    const uint8* init_data,
+    int init_data_length,
+    scoped_ptr<media::NewSessionCdmPromise> promise) {
   DVLOG(1) << __FUNCTION__;
 
-  DCHECK(!session_created_cb_.is_null())
-      << "CreateSession called on a sessionless MediaDrmBridge object.";
+  if (session_type != media::MediaKeys::TEMPORARY_SESSION) {
+    promise->reject(NOT_SUPPORTED_ERROR, 0,
+                    "Only the temporary session type is supported.");
+    return;
+  }
 
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jbyteArray> j_init_data;
   // Caller should always use "video/*" content types.
-  DCHECK_EQ(0u, content_type.find("video/"));
+  DCHECK_EQ(0u, init_data_type.find("video/"));
 
   // Widevine MediaDrm plugin only accepts the "data" part of the PSSH box as
   // the init data when using MP4 container.
   if (std::equal(scheme_uuid_.begin(), scheme_uuid_.end(), kWidevineUuid) &&
-      content_type == "video/mp4") {
+      init_data_type == "video/mp4") {
     std::vector<uint8> pssh_data;
-    if (!GetPsshData(init_data, init_data_length, scheme_uuid_, &pssh_data))
-      return false;
+    if (!GetPsshData(init_data, init_data_length, scheme_uuid_, &pssh_data)) {
+      promise->reject(INVALID_ACCESS_ERROR, 0, "Invalid PSSH data.");
+      return;
+    }
     j_init_data =
         base::android::ToJavaByteArray(env, &pssh_data[0], pssh_data.size());
   } else {
@@ -432,41 +460,58 @@ bool MediaDrmBridge::CreateSession(uint32 session_id,
   }
 
   ScopedJavaLocalRef<jstring> j_mime =
-      ConvertUTF8ToJavaString(env, content_type);
-  Java_MediaDrmBridge_createSession(
-      env, j_media_drm_.obj(), session_id, j_init_data.obj(), j_mime.obj());
-  return true;
+      ConvertUTF8ToJavaString(env, init_data_type);
+  uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
+  Java_MediaDrmBridge_createSession(env, j_media_drm_.obj(), j_init_data.obj(),
+                                    j_mime.obj(), promise_id);
 }
 
-void MediaDrmBridge::LoadSession(uint32 session_id,
-                                 const std::string& web_session_id) {
-  // MediaDrmBridge doesn't support loading sessions.
-  NOTREACHED();
+void MediaDrmBridge::LoadSession(
+    SessionType session_type,
+    const std::string& session_id,
+    scoped_ptr<media::NewSessionCdmPromise> promise) {
+  promise->reject(NOT_SUPPORTED_ERROR, 0, "LoadSession() is not supported.");
 }
 
-void MediaDrmBridge::UpdateSession(uint32 session_id,
-                                   const uint8* response,
-                                   int response_length) {
+void MediaDrmBridge::UpdateSession(
+    const std::string& session_id,
+    const uint8* response,
+    int response_length,
+    scoped_ptr<media::SimpleCdmPromise> promise) {
   DVLOG(1) << __FUNCTION__;
 
-  DCHECK(!session_ready_cb_.is_null())
-      << __FUNCTION__ << " called on a sessionless MediaDrmBridge object.";
-
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jbyteArray> j_response =
       base::android::ToJavaByteArray(env, response, response_length);
-  Java_MediaDrmBridge_updateSession(
-      env, j_media_drm_.obj(), session_id, j_response.obj());
+  ScopedJavaLocalRef<jbyteArray> j_session_id = base::android::ToJavaByteArray(
+      env, reinterpret_cast<const uint8_t*>(session_id.data()),
+      session_id.size());
+  uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
+  Java_MediaDrmBridge_updateSession(env, j_media_drm_.obj(), j_session_id.obj(),
+                                    j_response.obj(), promise_id);
 }
 
-void MediaDrmBridge::ReleaseSession(uint32 session_id) {
+void MediaDrmBridge::CloseSession(const std::string& session_id,
+                                  scoped_ptr<media::SimpleCdmPromise> promise) {
   DVLOG(1) << __FUNCTION__;
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jbyteArray> j_session_id = base::android::ToJavaByteArray(
+      env, reinterpret_cast<const uint8_t*>(session_id.data()),
+      session_id.size());
+  uint32_t promise_id = cdm_promise_adapter_.SavePromise(promise.Pass());
+  Java_MediaDrmBridge_closeSession(env, j_media_drm_.obj(), j_session_id.obj(),
+                                   promise_id);
+}
 
-  DCHECK(!session_closed_cb_.is_null())
-      << __FUNCTION__ << " called on a sessionless MediaDrmBridge object.";
+void MediaDrmBridge::RemoveSession(
+    const std::string& session_id,
+    scoped_ptr<media::SimpleCdmPromise> promise) {
+  promise->reject(NOT_SUPPORTED_ERROR, 0, "RemoveSession() is not supported.");
+}
 
-  JNIEnv* env = AttachCurrentThread();
-  Java_MediaDrmBridge_releaseSession(env, j_media_drm_.obj(), session_id);
+CdmContext* MediaDrmBridge::GetCdmContext() {
+  NOTREACHED();
+  return nullptr;
 }
 
 int MediaDrmBridge::RegisterPlayer(const base::Closure& new_key_cb,
@@ -500,54 +545,80 @@ void MediaDrmBridge::OnMediaCryptoReady(JNIEnv* env, jobject) {
     base::ResetAndReturn(&media_crypto_ready_cb_).Run();
 }
 
-void MediaDrmBridge::OnSessionCreated(JNIEnv* env,
-                                      jobject j_media_drm,
-                                      jint j_session_id,
-                                      jstring j_web_session_id) {
-  uint32 session_id = j_session_id;
-  std::string web_session_id = ConvertJavaStringToUTF8(env, j_web_session_id);
-  session_created_cb_.Run(session_id, web_session_id);
+void MediaDrmBridge::OnPromiseResolved(JNIEnv* env,
+                                       jobject j_media_drm,
+                                       jint j_promise_id) {
+  cdm_promise_adapter_.ResolvePromise(j_promise_id);
+}
+
+void MediaDrmBridge::OnPromiseResolvedWithSession(JNIEnv* env,
+                                                  jobject j_media_drm,
+                                                  jint j_promise_id,
+                                                  jbyteArray j_session_id) {
+  cdm_promise_adapter_.ResolvePromise(j_promise_id,
+                                      GetSessionId(env, j_session_id));
+}
+
+void MediaDrmBridge::OnPromiseRejected(JNIEnv* env,
+                                       jobject j_media_drm,
+                                       jint j_promise_id,
+                                       jstring j_error_message) {
+  std::string error_message = ConvertJavaStringToUTF8(env, j_error_message);
+  cdm_promise_adapter_.RejectPromise(j_promise_id, MediaKeys::UNKNOWN_ERROR, 0,
+                                     error_message);
 }
 
 void MediaDrmBridge::OnSessionMessage(JNIEnv* env,
                                       jobject j_media_drm,
-                                      jint j_session_id,
+                                      jbyteArray j_session_id,
                                       jbyteArray j_message,
-                                      jstring j_destination_url) {
-  uint32 session_id = j_session_id;
+                                      jstring j_legacy_destination_url) {
   std::vector<uint8> message;
   JavaByteArrayToByteVector(env, j_message, &message);
-  GURL destination_gurl = GURL(ConvertJavaStringToUTF8(env, j_destination_url));
-  if (!destination_gurl.is_valid() && !destination_gurl.is_empty()) {
-    DLOG(WARNING) << "SessionMessage destination_url is invalid : "
-                  << destination_gurl.possibly_invalid_spec();
-    destination_gurl = GURL::EmptyGURL();  // Replace invalid destination_url.
-  }
-  session_message_cb_.Run(session_id, message, destination_gurl);
-}
+  GURL legacy_destination_url =
+      GURL(ConvertJavaStringToUTF8(env, j_legacy_destination_url));
+  // Note: Message type is not supported in MediaDrm. Do our best guess here.
+  media::MediaKeys::MessageType message_type =
+      legacy_destination_url.is_empty() ? media::MediaKeys::LICENSE_REQUEST
+                                        : media::MediaKeys::LICENSE_RENEWAL;
 
-void MediaDrmBridge::OnSessionReady(JNIEnv* env,
-                                    jobject j_media_drm,
-                                    jint j_session_id) {
-  uint32 session_id = j_session_id;
-  session_ready_cb_.Run(session_id);
-  // TODO(xhwang/jrummell): Move this when usableKeyIds/keyschange are
-  // implemented.
-  player_tracker_.NotifyNewKey();
+  session_message_cb_.Run(GetSessionId(env, j_session_id), message_type,
+                          message, legacy_destination_url);
 }
 
 void MediaDrmBridge::OnSessionClosed(JNIEnv* env,
                                      jobject j_media_drm,
-                                     jint j_session_id) {
-  uint32 session_id = j_session_id;
-  session_closed_cb_.Run(session_id);
-}
-
-void MediaDrmBridge::OnSessionError(JNIEnv* env,
-                                    jobject j_media_drm,
-                                    jint j_session_id) {
-  uint32 session_id = j_session_id;
-  session_error_cb_.Run(session_id, MediaKeys::kUnknownError, 0);
+                                     jbyteArray j_session_id) {
+  session_closed_cb_.Run(GetSessionId(env, j_session_id));
+}
+
+void MediaDrmBridge::OnSessionKeysChange(JNIEnv* env,
+                                         jobject j_media_drm,
+                                         jbyteArray j_session_id,
+                                         bool has_additional_usable_key,
+                                         jint j_key_status) {
+  if (has_additional_usable_key)
+    player_tracker_.NotifyNewKey();
+
+  scoped_ptr<CdmKeyInformation> cdm_key_information(new CdmKeyInformation());
+  cdm_key_information->key_id.assign(kDummyKeyId,
+                                     kDummyKeyId + sizeof(kDummyKeyId));
+  cdm_key_information->status =
+      static_cast<CdmKeyInformation::KeyStatus>(j_key_status);
+  CdmKeysInfo cdm_keys_info;
+  cdm_keys_info.push_back(cdm_key_information.release());
+
+  session_keys_change_cb_.Run(GetSessionId(env, j_session_id),
+                              has_additional_usable_key, cdm_keys_info.Pass());
+}
+
+void MediaDrmBridge::OnLegacySessionError(JNIEnv* env,
+                                          jobject j_media_drm,
+                                          jbyteArray j_session_id,
+                                          jstring j_error_message) {
+  std::string error_message = ConvertJavaStringToUTF8(env, j_error_message);
+  session_error_cb_.Run(GetSessionId(env, j_session_id),
+                        MediaKeys::UNKNOWN_ERROR, 0, error_message);
 }
 
 ScopedJavaLocalRef<jobject> MediaDrmBridge::GetMediaCrypto() {