Update pepper to not assume that SharedMemoryHandle is an int.

content/renderer/pepper/ppb_buffer_impl.cc

Index: content/renderer/pepper/ppb_buffer_impl.cc
diff --git a/content/renderer/pepper/ppb_buffer_impl.cc b/content/renderer/pepper/ppb_buffer_impl.cc
index a818fce5530d4edc554f019b538caa25c5bd41d1..12bbbeaa3469824354c4c33b501ea120e47adeea 100644
--- a/content/renderer/pepper/ppb_buffer_impl.cc
+++ b/content/renderer/pepper/ppb_buffer_impl.cc
@@ -78,9 +78,8 @@ void PPB_Buffer_Impl::Unmap() {
     shared_memory_->Unmap();
 }
 
-int32_t PPB_Buffer_Impl::GetSharedMemory(int* shm_handle) {
-  *shm_handle = reinterpret_cast<int>(PlatformFileFromSharedMemoryHandle(
-      shared_memory_->handle()));
+int32_t PPB_Buffer_Impl::GetSharedMemory(base::SharedMemory** shm) {
+  *shm = shared_memory_.get();
   return PP_OK;
 }