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

gpu/command_buffer/service/logger.cc

 // Copyright (c) 2013 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/logger.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
-#include "base/string_number_conversions.h"
+#include "base/strings/string_number_conversions.h"
 #include "gpu/command_buffer/common/debug_marker_manager.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 
 namespace gpu {
 namespace gles2 {
 
 Logger::Logger(const DebugMarkerManager* debug_marker_manager)
     : debug_marker_manager_(debug_marker_manager),
       log_message_count_(0),
       log_synthesized_gl_errors_(true) {
@@ skipping 35 matching lines @@
   return prefix.empty() ? this_in_hex_ : prefix;
 }
 
 void Logger::SetMsgCallback(const MsgCallback& callback) {
   msg_callback_ = callback;
 }
 
 }  // namespace gles2
 }  // namespace gpu