Convert //cc from scoped_ptr to std::unique_ptr.

cc/trees/blocking_task_runner_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 "cc/trees/blocking_task_runner.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
 
 void TestTask(bool* result) {
   *result = true;
 }
 
 TEST(BlockingTaskRunnerTest, NoCapture) {
   bool did_run = false;
-  scoped_ptr<BlockingTaskRunner> runner(
+  std::unique_ptr<BlockingTaskRunner> runner(
       BlockingTaskRunner::Create(base::ThreadTaskRunnerHandle::Get()));
   runner->PostTask(FROM_HERE, base::Bind(&TestTask, &did_run));
   EXPECT_FALSE(did_run);
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(did_run);
 }
 
 TEST(BlockingTaskRunnerTest, Capture) {
   bool did_run = false;
-  scoped_ptr<BlockingTaskRunner> runner(
+  std::unique_ptr<BlockingTaskRunner> runner(
       BlockingTaskRunner::Create(base::ThreadTaskRunnerHandle::Get()));
   {
     BlockingTaskRunner::CapturePostTasks capture(runner.get());
     runner->PostTask(FROM_HERE, base::Bind(&TestTask, &did_run));
     EXPECT_FALSE(did_run);
   }
   EXPECT_TRUE(did_run);
 }
 
 }  // namespace
 }  // namespace cc