Add 'cbcs' encryption scheme support in Android media.

media/base/ipc/media_param_traits.h

Index: media/base/ipc/media_param_traits.h
diff --git a/media/base/ipc/media_param_traits.h b/media/base/ipc/media_param_traits.h
index 37f893846eb55d919462d502e612a5a9eee60713..dcc5833af72dc2c897501824d7a206d41705a7d3 100644
--- a/media/base/ipc/media_param_traits.h
+++ b/media/base/ipc/media_param_traits.h
@@ -11,6 +11,7 @@
 
 namespace media {
 class AudioParameters;
+class EncryptionScheme;
 }
 
 namespace IPC {
@@ -26,6 +27,17 @@ struct ParamTraits<media::AudioParameters> {
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct ParamTraits<media::EncryptionScheme> {
+  typedef media::EncryptionScheme param_type;
+  static void GetSize(base::PickleSizer* s, const param_type& p);
+  static void Write(base::Pickle* m, const param_type& p);
+  static bool Read(const base::Pickle* m,
+                   base::PickleIterator* iter,
+                   param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
 }  // namespace IPC
 
 #endif  // MEDIA_BASE_IPC_MEDIA_PARAM_TRAITS_H_