Porting changes in chrome/{browser,common}, also enabling more unit tests....

chrome/browser/browser_process.h

Index: chrome/browser/browser_process.h
===================================================================
--- chrome/browser/browser_process.h	(revision 2402)
+++ chrome/browser/browser_process.h	(working copy)
@@ -124,8 +124,10 @@
   // TODO(beng): remove once XPFrame/VistaFrame are gone.
   virtual bool IsUsingNewFrames() = 0;
 
+#if defined(OS_WIN)
   // Returns an event that is signaled when the browser shutdown.
   virtual HANDLE shutdown_event() = 0;
+#endif
 
  private:
   DISALLOW_EVIL_CONSTRUCTORS(BrowserProcess);