Update pepper to not assume that SharedMemoryHandle is an int.

content/renderer/pepper/ppb_audio_impl.h

Index: content/renderer/pepper/ppb_audio_impl.h
diff --git a/content/renderer/pepper/ppb_audio_impl.h b/content/renderer/pepper/ppb_audio_impl.h
index 6c0af8f90fbf3222f73c5e188463e6a600ec270b..130a6f3cea02c2ad865daf03b6cf10179a05a26a 100644
--- a/content/renderer/pepper/ppb_audio_impl.h
+++ b/content/renderer/pepper/ppb_audio_impl.h
@@ -44,7 +44,8 @@ class PPB_Audio_Impl : public ppapi::Resource,
   int32_t Open(PP_Resource config_id,
                scoped_refptr<ppapi::TrackedCallback> create_callback) override;
   int32_t GetSyncSocket(int* sync_socket) override;
-  int32_t GetSharedMemory(int* shm_handle, uint32_t* shm_size) override;
+  int32_t GetSharedMemory(base::SharedMemory** shm,
+                          uint32_t* shm_size) override;
 
  private:
   ~PPB_Audio_Impl() override;