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 68ebdad995ecab0ac4583b698b8529f864931ad7..b33d3794034864371aad2760319f4659e2293494 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;
 struct VideoCaptureFormat;
 }
 
@@ -38,6 +39,17 @@ struct ParamTraits<media::VideoCaptureFormat> {
   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_COMMON_MEDIA_PARAM_TRAITS_H_