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/browser_navigation_controller.h

@@ -3,8 +3,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef _BROWSER_NAVIGATION_CONTROLLER_H
-#define _BROWSER_NAVIGATION_CONTROLLER_H
+#ifndef CEF_LIBCEF_BROWSER_NAVIGATION_CONTROLLER_H_
+#define CEF_LIBCEF_BROWSER_NAVIGATION_CONTROLLER_H_
+#pragma once
 
 #include <string>
 #include <vector>
@@ -24,7 +25,7 @@ class CefBrowserImpl;
 // Associated with browser-initated navigations to hold tracking data.
 class BrowserExtraData : public WebKit::WebDataSource::ExtraData {
  public:
-  BrowserExtraData(int32 pending_page_id)
+  explicit BrowserExtraData(int32 pending_page_id)
       : pending_page_id(pending_page_id),
         request_committed(false) {
   }
@@ -76,7 +77,7 @@ class BrowserNavigationEntry {
   const WebKit::WebHTTPBody& GetUploadData() const { return upload_; }
   const CefRequest::HeaderMap& GetHeaders() const { return headers_; }
 
-private:
+ private:
   // Describes the current page that the tab represents. This is not relevant
   // for all tab contents types.
   int32 page_id_;
@@ -97,7 +98,7 @@ private:
 // version as possible.
 class BrowserNavigationController {
  public:
-  BrowserNavigationController(CefBrowserImpl* browser);
+  explicit BrowserNavigationController(CefBrowserImpl* browser);
   ~BrowserNavigationController();
 
   void Reset();
@@ -208,5 +209,5 @@ class BrowserNavigationController {
   DISALLOW_EVIL_CONSTRUCTORS(BrowserNavigationController);
 };
 
-#endif // _BROWSER_NAVIGATION_CONTROLLER_H
+#endif  // CEF_LIBCEF_BROWSER_NAVIGATION_CONTROLLER_H_