convert //gpu to std::unique_ptr

gpu/command_buffer/service/gpu_tracer_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 <stdint.h>
 
 #include "base/bind.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_mock.h"
 #include "gpu/command_buffer/service/gpu_service_test.h"
 #include "gpu/command_buffer/service/gpu_tracer.h"
@@ skipping 729 matching lines @@
         .Times(AtMost(1))
         .WillRepeatedly(Return(GetGLContext()));
     tracer_tester_.reset(new GPUTracerTester(decoder_.get()));
   }
 
   void TearDown() override {
     tracer_tester_ = nullptr;
     decoder_ = nullptr;
     GpuServiceTest::TearDown();
   }
-  scoped_ptr<MockGLES2Decoder> decoder_;
-  scoped_ptr<GPUTracerTester> tracer_tester_;
+  std::unique_ptr<MockGLES2Decoder> decoder_;
+  std::unique_ptr<GPUTracerTester> tracer_tester_;
 };
 
 TEST_F(GPUTracerTest, IsTracingTest) {
   EXPECT_FALSE(tracer_tester_->IsTracing());
   tracer_tester_->SetTracingEnabled(true);
   EXPECT_TRUE(tracer_tester_->IsTracing());
 }
 // Test basic functionality of the GPUTracerTester.
 TEST_F(GPUTracerTest, DecodeTest) {
   ASSERT_TRUE(tracer_tester_->BeginDecoding());
@@ skipping 42 matching lines @@
   scoped_refptr<gfx::GPUTimingClient>  client3 =
       GetGLContext()->CreateGPUTimingClient();
   ASSERT_TRUE(client1->CheckAndResetTimerErrors());
   ASSERT_TRUE(client2->CheckAndResetTimerErrors());
   ASSERT_FALSE(client3->CheckAndResetTimerErrors());
 }
 
 }  // namespace
 }  // namespace gles2
 }  // namespace gpu