Update the remaining include paths of base/string_piece.h to its new location.

webkit/support/webkit_support.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 "webkit/support/webkit_support.h"
 
 #include "base/at_exit.h"
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/debugger.h"
 #include "base/debug/stack_trace.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/i18n/icu_util.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/run_loop.h"
-#include "base/string_piece.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
+#include "base/strings/string_piece.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "cc/base/thread_impl.h"
 #include "googleurl/src/url_util.h"
 #include "grit/webkit_chromium_resources.h"
 #include "media/base/filter_collection.h"
 #include "media/base/media_log.h"
 #include "net/base/escape.h"
 #include "net/base/net_errors.h"
@@ skipping 807 matching lines @@
 // Logging
 void EnableWebCoreLogChannels(const std::string& channels) {
   webkit_glue::EnableWebCoreLogChannels(channels);
 }
 
 void SetGamepadData(const WebKit::WebGamepads& pads) {
   test_environment->webkit_platform_support()->setGamepadData(pads);
 }
 
 }  // namespace webkit_support