Enable use_once_callback for //content/common/*.mojom

content/browser/loader/mojo_async_resource_handler_unittest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/loader/mojo_async_resource_handler.h"
 
 #include <string.h>
 
 #include <utility>
 #include <vector>
@@ skipping 291 matching lines @@
 
   mojom::URLLoaderAssociatedRequest PassLoaderRequest() {
     return std::move(loader_request_);
   }
 
   mojom::URLLoaderClientPtr PassClientPtr() { return std::move(client_ptr_); }
 
   void SyncLoad(int32_t routing_id,
                 int32_t request_id,
                 const ResourceRequest& url_request,
-                const SyncLoadCallback& callback) override {
+                SyncLoadCallback callback) override {
     NOTREACHED();
   }
 
  private:
   mojom::URLLoaderAssociatedRequest loader_request_;
   mojom::URLLoaderClientPtr client_ptr_;
 
   DISALLOW_COPY_AND_ASSIGN(TestURLLoaderFactory);
 };
 
@@ skipping 1034 matching lines @@
     }
   }
   EXPECT_EQ("B", body);
 }
 
 INSTANTIATE_TEST_CASE_P(MojoAsyncResourceHandlerWithAllocationSizeTest,
                         MojoAsyncResourceHandlerWithAllocationSizeTest,
                         ::testing::Values(8, 32 * 2014));
 }  // namespace
 }  // namespace content