Reduce boilerplate when creating simple mojom::URLLoaders.

content/browser/webui/web_ui_url_loader_factory.cc

Index: content/browser/webui/web_ui_url_loader_factory.cc
diff --git a/content/browser/webui/web_ui_url_loader_factory.cc b/content/browser/webui/web_ui_url_loader_factory.cc
index a349bd942423407f454545a8d4aabe483a8c0517..1e5bad3a48ebbaf8b031fb7fe831f0f68906f743 100644
--- a/content/browser/webui/web_ui_url_loader_factory.cc
+++ b/content/browser/webui/web_ui_url_loader_factory.cc
@@ -90,15 +90,7 @@ void ReadData(scoped_refptr<ResourceResponse> headers,
   uint32_t output_size =
       gzipped ? compression::GetUncompressedSize(input) : bytes->size();
 
-  MojoCreateDataPipeOptions options;
-  options.struct_size = sizeof(MojoCreateDataPipeOptions);
-  options.flags = MOJO_CREATE_DATA_PIPE_OPTIONS_FLAG_NONE;
-  options.element_num_bytes = 1;
-  options.capacity_num_bytes = output_size;
-  mojo::DataPipe data_pipe(options);
-
-  DCHECK(data_pipe.producer_handle.is_valid());
-  DCHECK(data_pipe.consumer_handle.is_valid());
+  mojo::DataPipe data_pipe(output_size);
 
   void* buffer = nullptr;
   uint32_t num_bytes = output_size;
@@ -118,14 +110,7 @@ void ReadData(scoped_refptr<ResourceResponse> headers,
   CHECK_EQ(result, MOJO_RESULT_OK);
 
   client->OnStartLoadingResponseBody(std::move(data_pipe.consumer_handle));
-
-  ResourceRequestCompletionStatus request_complete_data;
-  request_complete_data.error_code = net::OK;
-  request_complete_data.exists_in_cache = false;
-  request_complete_data.completion_time = base::TimeTicks::Now();
-  request_complete_data.encoded_data_length = output_size;
-  request_complete_data.encoded_body_length = output_size;
-  client->OnComplete(request_complete_data);
+  client->OnComplete(ResourceRequestCompletionStatus(output_size));
 }
 
 void DataAvailable(scoped_refptr<ResourceResponse> headers,