base: Remove some unnecessary const scoped_refptr<>&.

base/test/task_runner_test_template.h

 // Copyright (c) 2012 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.
 
 // This file defines tests that implementations of TaskRunner should
 // pass in order to be conformant, as well as test cases for optional behavior.
 // Here's how you use it to test your implementation.
 //
 // Say your class is called MyTaskRunner.  Then you need to define a
 // class called MyTaskRunnerTestDelegate in my_task_runner_unittest.cc
@@ skipping 157 matching lines @@
 }
 
 // The TaskRunnerTest test case verifies behaviour that is expected from a
 // task runner in order to be conformant.
 REGISTER_TYPED_TEST_CASE_P(TaskRunnerTest, Basic, Delayed);
 
 namespace test {
 
 // Calls RunsTasksOnCurrentThread() on |task_runner| and expects it to
 // equal |expected_value|.
-void ExpectRunsTasksOnCurrentThread(
-    bool expected_value,
-    const scoped_refptr<TaskRunner>& task_runner);
+void ExpectRunsTasksOnCurrentThread(bool expected_value,
+                                    TaskRunner* task_runner);
 
 }  // namespace test
 
 template <typename TaskRunnerTestDelegate>
 class TaskRunnerAffinityTest : public TaskRunnerTest<TaskRunnerTestDelegate> {};
 
 TYPED_TEST_CASE_P(TaskRunnerAffinityTest);
 
 // Post a bunch of tasks to the task runner as well as to a separate
 // thread, each checking the value of RunsTasksOnCurrentThread(),
@@ skipping 28 matching lines @@
             this->task_tracker_->GetTaskRunCounts());
 }
 
 // TaskRunnerAffinityTest tests that the TaskRunner implementation
 // can determine if tasks will never be run on a specific thread.
 REGISTER_TYPED_TEST_CASE_P(TaskRunnerAffinityTest, RunsTasksOnCurrentThread);
 
 }  // namespace base
 
 #endif  // BASE_TEST_TASK_RUNNER_TEST_TEMPLATE_H_