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

base/values_unittest.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 <limits>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
-#include "base/utf_string_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 TEST(ValuesTest, Basic) {
   // Test basic dictionary getting/setting
   DictionaryValue settings;
   std::string homepage = "http://google.com";
   ASSERT_FALSE(settings.GetString("global.homepage", &homepage));
@@ skipping 749 matching lines @@
       seen2 = true;
     } else {
       ADD_FAILURE();
     }
   }
   EXPECT_TRUE(seen1);
   EXPECT_TRUE(seen2);
 }
 
 }  // namespace base