Fix for bug 4371230.
- Generate unique ID for each DrmManagerClient in native side
- Fix the bug where multiple clients could use the same ID
- Return the correct unique ID back to Java
- Add a flag in the unique ID to separate native client and Java client

Change-Id: Ia4574b6b0a526f2335a65380975dc62f9a6e7f9b
diff --git a/drm/common/IDrmManagerService.cpp b/drm/common/IDrmManagerService.cpp
index 2d8e877..986f32c 100644
--- a/drm/common/IDrmManagerService.cpp
+++ b/drm/common/IDrmManagerService.cpp
@@ -110,11 +110,11 @@
     handle->extendedData.clear();
 }
 
-int BpDrmManagerService::addUniqueId(int uniqueId) {
+int BpDrmManagerService::addUniqueId(bool isNative) {
     LOGV("add uniqueid");
     Parcel data, reply;
     data.writeInterfaceToken(IDrmManagerService::getInterfaceDescriptor());
-    data.writeInt32(uniqueId);
+    data.writeInt32(isNative);
     remote()->transact(ADD_UNIQUEID, data, &reply);
     return reply.readInt32();
 }