Clean up some style and organization in the browser about handler. No code...

chrome/browser/browser_about_handler.h

 // Copyright (c) 2006-2008 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.
 
 // Contains code for handling "about:" URLs in the browser process.
 
 #ifndef CHROME_BROWSER_BROWSER_ABOUT_HANDLER_H_
 #define CHROME_BROWSER_BROWSER_ABOUT_HANDLER_H_
 
-#include <string>
+#include "chrome/browser/tab_contents/tab_contents_type.h"
 
-#include "base/basictypes.h"
-#include "chrome/browser/tab_contents/tab_contents_type.h"
-#include "chrome/browser/tab_contents/web_contents.h"
-#include "chrome/browser/dom_ui/chrome_url_data_manager.h"
+class GURL;
 
-class AboutSource;
-class DictionaryValue;
-class GURL;
-class ListValue;
-class Profile;
-class RenderProcessHost;
-class RenderViewHostFactory;
-class SiteInstance;
+// Decides whether the given URL will be handled by the browser about handler
+// and returns true if so. On true, it may also modify the given URL to be the
+// final form (we fix up most "about:" URLs to be "chrome-ui:" because WebKit
+// handles all "about:" URLs as "about:blank.
+//
+// This is used by BrowserURLHandler.
+bool WillHandleBrowserAboutURL(GURL* url, TabContentsType* type);
 
-class BrowserAboutHandler : public WebContents {
- public:
-  BrowserAboutHandler(Profile* profile,
-                      SiteInstance* instance,
-                      RenderViewHostFactory* render_view_factory);
-  virtual ~BrowserAboutHandler() {}
-
-  // We don't want a favicon on the about pages.
-  virtual bool ShouldDisplayFavIcon() { return false; }
-  // Enable javascript urls for the about pages.
-  virtual bool SupportsURL(GURL* url);
-
-  // If |url| is a known "about:" URL, this method handles it
-  // and sets |url| to an alternate URL indicating the real content to load.
-  // (If it's not a URL that the function can handle, it's a no-op and returns
-  // false.)
-  static bool MaybeHandle(GURL* url, TabContentsType* type);
-
-  // Renders a special page for "about:" which displays version information.
-  static std::string AboutVersion();
-
-  // Renders a special page for about:plugins.
-  static std::string AboutPlugins();
-
-  // Renders a special page for about:histograms.
-  static std::string AboutHistograms(const std::string& query);
-
-  // Renders a special page about:objects (about tracked objects such as Tasks).
-  static std::string AboutObjects(const std::string& query);
-
-  // Renders a special page for about:dns.
-  static std::string AboutDns();
-
-  // Renders a special page for about:stats.
-  static std::string AboutStats();
-
-  // Renders a special page for "about:credits" which displays our
-  // acknowledgements and legal information for code we depend on.
-  static std::string AboutCredits();
-
-  // Renders a special page for "about:terms" which displays our
-  // terms and conditions.
-  static std::string AboutTerms();
-
-  // Renders a special page for about:memory which displays
-  // information about current state.
-  static void AboutMemory(AboutSource*, int request_id);
-
-  // This displays the Linux splash screen for development releases.
-  static std::string AboutLinuxSplash();
-
- private:
-  ChromeURLDataManager::DataSource* about_source_;
-  DISALLOW_COPY_AND_ASSIGN(BrowserAboutHandler);
-};
+// We have a few magic commands that don't cause navigations, but rather pop up
+// dialogs. This function handles those cases, and returns true if so. In this
+// case, normal tab navigation should be skipped.
+bool HandleNonNavigationAboutURL(const GURL& url);
 
 #endif  // CHROME_BROWSER_BROWSER_ABOUT_HANDLER_H_