Make CEF compliant with Google/Chromium style (issue #473).

- Add a new check_style tool based on Google's cpplint that can be used to verify compliance of pending changes and specific files/directories.
- Update existing CEF source code to be compliant with the style requirements.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@463 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/cef_process_ui_thread_gtk.cc

@@ -2,14 +2,12 @@
 // reserved. Use of this source code is governed by a BSD-style license that
 // can be found in the LICENSE file.
 
-#include "cef_process_ui_thread.h"
-#include "browser_impl.h"
+#include "libcef/cef_process_ui_thread.h"
+#include "libcef/browser_impl.h"
 
 void CefProcessUIThread::PlatformInit() {
-
 }
 
 void CefProcessUIThread::PlatformCleanUp() {
-  
 }