Add ChromeBrowserMainExtraParts for non main parts.

chrome/browser/chrome_browser_parts_gtk.h

Index: chrome/browser/chrome_browser_parts_gtk.h
diff --git a/chrome/browser/chrome_browser_parts_gtk.h b/chrome/browser/chrome_browser_parts_gtk.h
index e824f3c6f48d6c7b7dba03a0924ec21c17397c12..ea073ecba1a58986ef94f2487dc268a88ea9b22d 100644
--- a/chrome/browser/chrome_browser_parts_gtk.h
+++ b/chrome/browser/chrome_browser_parts_gtk.h
@@ -9,20 +9,13 @@
 #pragma once
 
 #include "base/compiler_specific.h"
-#include "content/public/browser/browser_main_parts.h"
+#include "chrome/browser/chrome_browser_parts.h"
 
-class ChromeBrowserPartsGtk : public content::BrowserMainParts {
+class ChromeBrowserPartsGtk : public ChromeBrowserParts {
  public:
   ChromeBrowserPartsGtk();
 
   virtual void PreEarlyInitialization() OVERRIDE;
-  virtual void PostEarlyInitialization() OVERRIDE;
-  virtual void ToolkitInitialized() OVERRIDE;
-  virtual void PreMainMessageLoopStart() OVERRIDE;
-  virtual void PostMainMessageLoopStart() OVERRIDE;
-  virtual void PreMainMessageLoopRun() OVERRIDE;
-  virtual bool MainMessageLoopRun(int* result_code) OVERRIDE;
-  virtual void PostMainMessageLoopRun() OVERRIDE;
 
   static void ShowMessageBox(const char* message);