Reduce boilerplate when creating simple mojom::URLLoaders.

content/browser/blob_storage/blob_internals_url_loader.cc

Index: content/browser/blob_storage/blob_internals_url_loader.cc
diff --git a/content/browser/blob_storage/blob_internals_url_loader.cc b/content/browser/blob_storage/blob_internals_url_loader.cc
index fe5d62b2c706e4297a8b8b9b2a63e63ee019862d..84906c806d8dfdb8d83e2fa050f197d7488c0840 100644
--- a/content/browser/blob_storage/blob_internals_url_loader.cc
+++ b/content/browser/blob_storage/blob_internals_url_loader.cc
@@ -26,16 +26,7 @@ void StartBlobInternalsURLLoader(
 
   std::string output = storage::ViewBlobInternalsJob::GenerateHTML(
       blob_storage_context->context());
-
-  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();
@@ -50,14 +41,7 @@ void StartBlobInternalsURLLoader(
   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()));
 }
 
 }  // namespace content