Add MediaDrmBridge::AddKeySystemUuidMapping().

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 f34bbc43b22a2f13a2ae63f713f87640b831d8a9..44784967f197c97aa686dcc190cd23ddc30c9c45 100644
--- a/media/base/android/media_drm_bridge.h
+++ b/media/base/android/media_drm_bridge.h
@@ -47,6 +47,10 @@ class MEDIA_EXPORT MediaDrmBridge : public MediaKeys {
   // Checks whether |key_system| is supported.
   static bool IsKeySystemSupported(const std::string& key_system);
 
+  // Adds a new |key_system| with the associated |uuid|.
+  static void AddKeySystem(const std::string& key_system,
+                           const std::vector<uint8>& uuid);
+
   // Checks whether |key_system| is supported with |container_mime_type|.
   // |container_mime_type| must not be empty.
   static bool IsKeySystemSupportedWithType(