Revert 171408

ppapi/proxy/resource_message_params.cc

Index: ppapi/proxy/resource_message_params.cc
diff --git a/ppapi/proxy/resource_message_params.cc b/ppapi/proxy/resource_message_params.cc
index 49b6328bdfe61e3f38aba74624ecd03bd0515d5f..aaca8c9a6f4da0f4e51fffd5ef26d75a4ea63590 100644
--- a/ppapi/proxy/resource_message_params.cc
+++ b/ppapi/proxy/resource_message_params.cc
@@ -91,17 +91,6 @@ bool ResourceMessageParams::TakeSocketHandleAtIndex(
   return true;
 }
 
-bool ResourceMessageParams::TakeFileHandleAtIndex(
-    size_t index,
-    IPC::PlatformFileForTransit* handle) const {
-  SerializedHandle serialized = TakeHandleOfTypeAtIndex(
-      index, SerializedHandle::FILE);
-  if (!serialized.is_file())
-    return false;
-  *handle = serialized.descriptor();
-  return true;
-}
-
 void ResourceMessageParams::TakeAllSharedMemoryHandles(
     std::vector<base::SharedMemoryHandle>* handles) const {
   for (size_t i = 0; i < handles_->data().size(); ++i) {