Add support for WV DRM

Change-Id: I0408c5e0a488f112a84337b21b0cd4613a4da461
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
index 965c370..d12ac64 100644
--- a/media/libstagefright/MediaExtractor.cpp
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -25,6 +25,7 @@
 #include "include/OggExtractor.h"
 #include "include/MPEG2TSExtractor.h"
 #include "include/DRMExtractor.h"
+#include "include/WVMExtractor.h"
 
 #include "matroska/MatroskaExtractor.h"
 
@@ -92,6 +93,8 @@
         return new MatroskaExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2TS)) {
         return new MPEG2TSExtractor(source);
+    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WVM)) {
+        return new WVMExtractor(source);
     }
 
     return NULL;