Implementation of ppapi audio.

ppapi/thunk/thunk.h

Index: ppapi/thunk/thunk.h
===================================================================
--- ppapi/thunk/thunk.h	(revision 109955)
+++ ppapi/thunk/thunk.h	(working copy)
@@ -27,6 +27,7 @@
 #undef PROXIED_IFACE
 #undef IFACE
 
+struct PPB_AudioInputTrusted_Dev;
 struct PPB_AudioTrusted;
 struct PPB_BrokerTrusted;
 struct PPB_BufferTrusted;
@@ -52,6 +53,8 @@
 // Old-style thunk getters. Only put trusted/private stuff here (it hasn't
 // yet been converted to the new system). Otherwise, add the declaration to
 // the appropriate interfaces_*.h file.
+PPAPI_THUNK_EXPORT const PPB_AudioInputTrusted_Dev*
+    GetPPB_AudioInputTrusted_Thunk();
 PPAPI_THUNK_EXPORT const PPB_AudioTrusted* GetPPB_AudioTrusted_Thunk();
 PPAPI_THUNK_EXPORT const PPB_BrokerTrusted* GetPPB_Broker_Thunk();
 PPAPI_THUNK_EXPORT const PPB_BufferTrusted* GetPPB_BufferTrusted_Thunk();