Add decoder de-initialize and reset to the Pepper CDM API.

ppapi/c/private/pp_content_decryptor.h

Index: ppapi/c/private/pp_content_decryptor.h
diff --git a/ppapi/c/private/pp_content_decryptor.h b/ppapi/c/private/pp_content_decryptor.h
index 8467e9f90f8899a3550ca4f2c70f4ca1656f9f4d..968650da03138b2bfa7056f9db508473428b875d 100644
--- a/ppapi/c/private/pp_content_decryptor.h
+++ b/ppapi/c/private/pp_content_decryptor.h
@@ -3,7 +3,7 @@
  * found in the LICENSE file.
  */
 
-/* From private/pp_content_decryptor.idl modified Wed Oct  3 16:16:49 2012. */
+/* From private/pp_content_decryptor.idl modified Wed Oct 10 17:21:21 2012. */
 
 #ifndef PPAPI_C_PRIVATE_PP_CONTENT_DECRYPTOR_H_
 #define PPAPI_C_PRIVATE_PP_CONTENT_DECRYPTOR_H_
@@ -302,5 +302,21 @@ PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(PP_DecryptedFrameInfo, 56);
  * @}
  */
 
+/**
+ * @addtogroup Enums
+ * @{
+ */
+/**
+ * <code>PP_StreamType</code> contains stream type constants.
+ */
+typedef enum {
+  PP_STREAMTYPE_AUDIO = 0,
+  PP_STREAMTYPE_VIDEO = 1
+} PP_StreamType;
+PP_COMPILE_ASSERT_SIZE_IN_BYTES(PP_StreamType, 4);
+/**
+ * @}
+ */
+
 #endif  /* PPAPI_C_PRIVATE_PP_CONTENT_DECRYPTOR_H_ */