Move Windows-specific first run task out of chrome_browser_main.cc by introducing first_run::DoFirs…

chrome/browser/chrome_browser_main_extra_parts.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 
 // Interface class for Parts owned by ChromeBrowserMainParts.
 // The default implementation for all methods is empty.
 
 // Most of these map to content::BrowserMainParts methods. This interface is
 // separate to allow stages to be further subdivided for Chrome specific
 // initialization stages (e.g. browser process init, profile init).
 
+// While ChromeBrowserMainParts are platform-specific,
+// ChromeBrowserMainExtraParts are used to do further initialization for various
+// Chrome toolkits (e.g., GTK, VIEWS, ASH, AURA, etc.; see
+// ChromeContentBrowserClient::CreateBrowserMainParts()).
+
 class ChromeBrowserMainExtraParts {
  public:
   virtual ~ChromeBrowserMainExtraParts() {}
 
   // EarlyInitialization methods.
   virtual void PreEarlyInitialization() {}
   virtual void PostEarlyInitialization() {}
 
   // ToolkitInitialized methods.
   virtual void ToolkitInitialized() {}
 
   // MainMessageLoopStart methods.
   virtual void PreMainMessageLoopStart() {}
   virtual void PostMainMessageLoopStart() {}
 
   // MainMessageLoopRun methods.
   virtual void PreProfileInit() {}
   virtual void PostProfileInit() {}
+  virtual void PreInteractiveFirstRunInit() {}
+  virtual void PostInteractiveFirstRunInit() {}
   virtual void PreBrowserStart() {}
   virtual void PostBrowserStart() {}
   virtual void PreMainMessageLoopRun() {}
   virtual void PostMainMessageLoopRun() {}
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_H_