Use a direct include of utf_string_conversions.h in android_webview/, apps/, ash/, base/.

android_webview/renderer/aw_content_renderer_client.cc

 // Copyright 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 "android_webview/renderer/aw_content_renderer_client.h"
 
 #include "android_webview/common/aw_resource.h"
 #include "android_webview/common/url_constants.h"
 #include "android_webview/renderer/aw_render_view_ext.h"
 #include "android_webview/renderer/view_renderer.h"
 #include "base/message_loop.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "components/visitedlink/renderer/visitedlink_slave.h"
 #include "content/public/renderer/render_thread.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_errors.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
 #include "third_party/WebKit/public/platform/WebURLError.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityPolicy.h"
 
@@ skipping 73 matching lines @@
   return visited_link_slave_->IsVisited(link_hash);
 }
 
 void AwContentRendererClient::PrefetchHostName(const char* hostname,
                                                size_t length) {
   // TODO(boliu): Implement hostname prefetch for Android WebView.
   // Perhaps componentize chrome implementation or move to content/?
 }
 
 }  // namespace android_webview