Update from https://crrev.com/304121

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 <map>
 #include <set>
 
 #include "gpu/command_buffer/service/gpu_service_test.h"
 #include "gpu/command_buffer/service/gpu_tracer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_mock.h"
 
 namespace gpu {
 namespace gles2 {
 
-using ::testing::InvokeWithoutArgs;
 using ::testing::Return;
-using ::testing::ReturnRef;
-using ::testing::ReturnPointee;
 using ::testing::NotNull;
-using ::testing::ElementsAreArray;
-using ::testing::ElementsAre;
-using ::testing::SetArrayArgument;
 using ::testing::AtLeast;
-using ::testing::SetArgPointee;
-using ::testing::Pointee;
-using ::testing::Unused;
 using ::testing::Invoke;
 using ::testing::_;
 
 class MockOutputter : public Outputter {
  public:
   MockOutputter() {}
   MOCK_METHOD3(Trace,
                void(const std::string& name, int64 start_time, int64 end_time));
 
  protected:
@@ skipping 186 matching lines @@
 
 TEST_F(GpuDisjointTimerTracerTest, GPUTrace) {
   // Test basic timer query functionality
   {
     DoTraceTest();
   }
 }
 
 }  // namespace gles2
 }  // namespace gpu