Allows support for persistent session types in BrowserCdm.

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 17ed784e5cdae8fef6ec46b77c174b3a966ace25..fdf8be733a890430ce21e15d9901811ab8aa0a64 100644
--- a/media/base/android/media_drm_bridge.cc
+++ b/media/base/android/media_drm_bridge.cc
@@ -316,6 +316,7 @@ void MediaDrmBridge::CreateSessionAndGenerateRequest(
   DVLOG(1) << __FUNCTION__;
 
   if (session_type != media::MediaKeys::TEMPORARY_SESSION) {
+    NOTREACHED() << "EME persistent sessions not yet supported on Android.";

[ddorwin, 2015/05/29 02:13:59]

On second thought, since that code could in theory be called from Mojo, which
would bypass these checks, it should probably be NOTIMPLEMENTED(). Thoughts?

[gunsch, 2015/05/29 16:40:10]

Done.

     promise->reject(NOT_SUPPORTED_ERROR, 0,
                     "Only the temporary session type is supported.");
     return;
@@ -367,6 +368,7 @@ void MediaDrmBridge::LoadSession(
     SessionType session_type,
     const std::string& session_id,
     scoped_ptr<media::NewSessionCdmPromise> promise) {
+  NOTREACHED() << "EME persistent sessions not yet supported on Android.";
   promise->reject(NOT_SUPPORTED_ERROR, 0, "LoadSession() is not supported.");
 }
 
@@ -402,6 +404,7 @@ void MediaDrmBridge::CloseSession(const std::string& session_id,
 void MediaDrmBridge::RemoveSession(
     const std::string& session_id,
     scoped_ptr<media::SimpleCdmPromise> promise) {
+  NOTREACHED() << "EME persistent sessions not yet supported on Android.";
   promise->reject(NOT_SUPPORTED_ERROR, 0, "RemoveSession() is not supported.");
 }