Use a direct include of strings headers in extensions/, google_apis/, gpu/.

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc

 // 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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
-#include "base/string_number_conversions.h"
+#include "base/strings/string_number_conversions.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/service/cmd_buffer_engine.h"
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_mock.h"
 #include "gpu/command_buffer/service/logger.h"
 #include "gpu/command_buffer/service/program_manager.h"
+#include "gpu/command_buffer/service/test_helper.h"
 #include "gpu/command_buffer/service/vertex_attrib_manager.h"
-#include "gpu/command_buffer/service/test_helper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_mock.h"
 
 using ::gfx::MockGLInterface;
 using ::testing::_;
 using ::testing::DoAll;
 using ::testing::InSequence;
 using ::testing::MatcherCast;
 using ::testing::Pointee;
@@ skipping 1347 matching lines @@
   SetupDefaultProgram();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_0_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu