Add more directories to _CheckForString16() whitelist.

PRESUBMIT.py

 # 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.
 
 """Top-level presubmit script for Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into gcl.
 """
 
@@ skipping 1172 matching lines @@
       results.append('    %s:%d' % (f.LocalPath(), lnum))
   return results
 
 
 def _CheckForString16(input_api, output_api):
   file_filter = lambda f: input_api.FilterSourceFile(f,
       white_list=(
           r'^android_webview[\\\/]',
           r'^apps[\\\/]',
           r'^ash[\\\/]',
-          r'^chrome[\\\/]browser[\\\/]',
+          r'^chrome[\\\/]',
           r'^chromeos[\\\/]',
           r'^components[\\\/]',
+          r'^content[\\\/]',
           r'^device[\\\/]',
           r'^ipc[\\\/]',
           r'^net[\\\/]',
           r'^ppapi[\\\/]',
           r'^printing[\\\/]',
           r'^rlz[\\\/]',
           r'^skia[\\\/]',
           r'^tools[\\\/]',
           r'^ui[\\\/]',
           r'^webkit[\\\/]',
@@ skipping 261 matching lines @@
     trybots.extend(GetDefaultTryConfigs(['cros_x86']))
 
   # The AOSP bot doesn't build the chrome/ layer, so ignore any changes to it
   # unless they're .gyp(i) files as changes to those files can break the gyp
   # step on that bot.
   if (not all(re.search('^chrome', f) for f in files) or
       any(re.search('\.gypi?$', f) for f in files)):
     trybots.extend(GetDefaultTryConfigs(['android_aosp']))
 
   return trybots