aw: Support the platform specific key-systems.

media/base/android/java/src/org/chromium/media/MediaDrmBridge.java

Index: media/base/android/java/src/org/chromium/media/MediaDrmBridge.java
diff --git a/media/base/android/java/src/org/chromium/media/MediaDrmBridge.java b/media/base/android/java/src/org/chromium/media/MediaDrmBridge.java
index aceb36279946165a2f766aa4c1144ae862831560..d211393582f8733fb8939d55cf7462829f8ef937 100644
--- a/media/base/android/java/src/org/chromium/media/MediaDrmBridge.java
+++ b/media/base/android/java/src/org/chromium/media/MediaDrmBridge.java
@@ -31,7 +31,7 @@ import java.util.UUID;
  * sessions for a single MediaSourcePlayer.
  */
 @JNINamespace("media")
-class MediaDrmBridge {
+public class MediaDrmBridge {
     // Implementation Notes:
     // - A media crypto session (mMediaCryptoSession) is opened after MediaDrm
     //   is created. This session will be added to mSessionIds.
@@ -876,6 +876,11 @@ class MediaDrmBridge {
         }
     }
 
+    public static void addKeySystemUuidMapping(String keySystem, UUID uuid) {
+        nativeAddKeySystemUuidMapping(keySystem,
+                uuid.getMostSignificantBits(), uuid.getLeastSignificantBits());
+    }
+
     private native void nativeOnMediaCryptoReady(long nativeMediaDrmBridge);
 
     private native void nativeOnSessionCreated(long nativeMediaDrmBridge, int sessionId,
@@ -892,4 +897,7 @@ class MediaDrmBridge {
 
     private native void nativeOnResetDeviceCredentialsCompleted(
             long nativeMediaDrmBridge, boolean success);
+
+    private static native void nativeAddKeySystemUuidMapping(String keySystem,
+            long uuidMsb, long uuidLsb);
 }