Update pepper to not assume that SharedMemoryHandle is an int.

ppapi/thunk/ppb_audio_api.h

Index: ppapi/thunk/ppb_audio_api.h
diff --git a/ppapi/thunk/ppb_audio_api.h b/ppapi/thunk/ppb_audio_api.h
index 25a1eb3336587c56c85871723b535eea3d429463..892027c924ba969c753c5929f1256c774e73cfd9 100644
--- a/ppapi/thunk/ppb_audio_api.h
+++ b/ppapi/thunk/ppb_audio_api.h
@@ -10,6 +10,10 @@
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
+namespace base {
+class SharedMemory;
+}  // namespace base
+
 namespace ppapi {
 
 class TrackedCallback;
@@ -29,7 +33,8 @@ class PPAPI_THUNK_EXPORT PPB_Audio_API {
       PP_Resource config_id,
       scoped_refptr<TrackedCallback> create_callback) = 0;
   virtual int32_t GetSyncSocket(int* sync_socket) = 0;
-  virtual int32_t GetSharedMemory(int* shm_handle, uint32_t* shm_size) = 0;
+  virtual int32_t GetSharedMemory(base::SharedMemory** shm,
+                                  uint32_t* shm_size) = 0;
 };
 
 }  // namespace thunk