Make gpu black list work again on Linux

content/public/browser/browser_main_parts.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_BROWSER_MAIN_PARTS_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_MAIN_PARTS_H_
 
 #include "content/common/content_export.h"
 
 namespace content {
@@ skipping 50 matching lines @@
 
   // Allows an embedder to do any extra toolkit initialization.
   virtual void ToolkitInitialized() {}
 
   // Called just before any child threads owned by the content
   // framework are created.
   //
   // The main message loop has been started at this point (but has not
   // been run), and the toolkit has been initialized. Returns the error code
   // (or 0 if no error).
-  virtual int PreCreateThreads();
+  virtual int PreCreateThreadsBegin();
+
+  // Allow to do some jobs after PreCreateThreads() but just before actually
+  // starting threads.
+  virtual void PreCreateThreadsEnd() {}
 
   // This is called just before the main message loop is run.  The
   // various browser threads have all been created at this point
   virtual void PreMainMessageLoopRun() {}
 
   // Returns true if the message loop was run, false otherwise.
   // If this returns false, the default implementation will be run.
   // May set |result_code|, which will be returned by |BrowserMain()|.
   virtual bool MainMessageLoopRun(int* result_code);
 
   // This happens after the main message loop has stopped, but before
   // threads are stopped.
   virtual void PostMainMessageLoopRun() {}
 
   // Called as the very last part of shutdown, after threads have been
   // stopped and destroyed.
   virtual void PostDestroyThreads() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_MAIN_PARTS_H_