Make GTK and Aura parts orthogonal to OS parts

chrome/browser/chrome_browser_main_aura.h

Index: chrome/browser/chrome_browser_main_aura.h
diff --git a/chrome/browser/chrome_browser_main_aura.h b/chrome/browser/chrome_browser_main_aura.h
index 3b11d4ebcc3178006b37b305275b75e41cc60ec4..960e9658249fb03653c22f900265594b2bab6412 100644
--- a/chrome/browser/chrome_browser_main_aura.h
+++ b/chrome/browser/chrome_browser_main_aura.h
@@ -7,15 +7,16 @@
 
 #include "chrome/browser/chrome_browser_main.h"
 
-class ChromeBrowserMainPartsAura : public ChromeBrowserMainParts {
+class ChromeBrowserPartsAura : public ChromeBrowserMainParts::ExtraParts {
  public:
-  explicit ChromeBrowserMainPartsAura(const MainFunctionParams& parameters);
+  explicit ChromeBrowserPartsAura(ChromeBrowserMainParts* main_parts);
 
   virtual void PreEarlyInitialization() OVERRIDE;
-  virtual void PostMainMessageLoopStart() OVERRIDE;
+
+  static void ShowMessageBox(const char* message);
 
  private:
-  DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsAura);
+  DISALLOW_COPY_AND_ASSIGN(ChromeBrowserPartsAura);
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_AURA_H_