Remove base/thread_task_runner_handle.h dummy.

blimp/engine/app/blimp_metrics_service_client_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 "blimp/engine/app/blimp_metrics_service_client.h"
 
 #include <list>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/test/test_simple_task_runner.h"
-#include "base/thread_task_runner_handle.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "components/metrics/metrics_service.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/prefs/in_memory_pref_store.h"
 #include "components/prefs/pref_service.h"
 #include "components/prefs/pref_service_factory.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 71 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(BlimpMetricsServiceClientTest);
 };
 
 TEST_F(BlimpMetricsServiceClientTest, CtorDtor) {
   // Confirm construction and destruction work as expected.
 }
 
 }  // namespace engine
 }  // namespace blimp