Make gpu black list work again on Linux

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_
 
 // Interface class for Parts owned by ChromeBrowserMainParts.
 // The default implementation for all methods is empty.
 
@@ skipping 15 matching lines @@
   virtual void PostEarlyInitialization() {}
 
   // ToolkitInitialized methods.
   virtual void ToolkitInitialized() {}
 
   // MainMessageLoopStart methods.
   virtual void PreMainMessageLoopStart() {}
   virtual void PostMainMessageLoopStart() {}
 
   // MainMessageLoopRun methods.
-  virtual void PreCreateThreads() {}
+  virtual void PreCreateThreadsBegin() {}
+  virtual void PreCreateThreadsEnd() {}
   virtual void PreProfileInit() {}
   virtual void PostProfileInit() {}
   virtual void PreBrowserStart() {}
   virtual void PostBrowserStart() {}
   virtual void PreMainMessageLoopRun() {}
   virtual void PostMainMessageLoopRun() {}
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_EXTRA_PARTS_H_