Use per-frame TaskRunner instead of thread's default in DataConsumerHandle

content/child/web_data_consumer_handle_impl_unittest.cc

 // Copyright 2014 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/child/web_data_consumer_handle_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 35 matching lines @@
 class ClientImpl final : public WebDataConsumerHandle::Client {
  public:
   explicit ClientImpl(ReadDataOperationBase* operation)
       : operation_(operation) {}
 
   void didGetReadable() override {
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(&ReadDataOperationBase::ReadMore,
                               base::Unretained(operation_)));
   }
+  blink::WebTaskRunner* getTaskRunner() override {
+    return nullptr;
+  }
 
  private:
   ReadDataOperationBase* operation_;
 };
 
 class ReadDataOperation : public ReadDataOperationBase {
  public:
   typedef WebDataConsumerHandle::Result Result;
   ReadDataOperation(mojo::ScopedDataPipeConsumerHandle handle,
                     base::MessageLoop* main_message_loop,
@@ skipping 206 matching lines @@
 
   run_loop.Run();
   t.Stop();
 
   EXPECT_EQ(expected, operation->result());
 }
 
 }  // namespace
 
 }  // namespace content