Update pepper to not assume that SharedMemoryHandle is an int.

ppapi/thunk/ppb_buffer_api.h

Index: ppapi/thunk/ppb_buffer_api.h
diff --git a/ppapi/thunk/ppb_buffer_api.h b/ppapi/thunk/ppb_buffer_api.h
index 2542ec4cf5a96d2176b65c3f0766d4bf02e6be1d..924b178288e338c4d6eab944a1ff89cc63a10567 100644
--- a/ppapi/thunk/ppb_buffer_api.h
+++ b/ppapi/thunk/ppb_buffer_api.h
@@ -9,6 +9,10 @@
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/thunk/ppapi_thunk_export.h"
 
+namespace base {
+class SharedMemory;
+}  // namespace base
+
 namespace ppapi {
 namespace thunk {
 
@@ -22,7 +26,7 @@ class PPAPI_THUNK_EXPORT PPB_Buffer_API {
   virtual void Unmap() = 0;
 
   // Trusted API
-  virtual int32_t GetSharedMemory(int* handle) = 0;
+  virtual int32_t GetSharedMemory(base::SharedMemory** shm) = 0;
 };
 
 }  // namespace thunk