bug 12816 init XPInstall before any components are loaded so they can be replaced

xpfe/bootstrap/nsAppRunner.cpp

@@ -51,7 +51,12 @@
 #include "nsIWindowMediator.h"
 #include "nsIDOMWindow.h"
 #include "nsIClipboard.h"
+#ifndef XP_MAC
+#include "nsISoftwareUpdate.h"
+#include "nsSoftwareUpdateIIDs.h"
 
+static NS_DEFINE_CID(kSoftUpdateCID,     NS_SoftwareUpdate_CID);
+#endif
 static NS_DEFINE_IID(kIWindowMediatorIID,NS_IWINDOWMEDIATOR_IID);
 static NS_DEFINE_CID(kWindowMediatorCID, NS_WINDOWMEDIATOR_CID);
 static NS_DEFINE_IID(kWalletServiceCID,     NS_WALLETSERVICE_CID);
@@ -656,8 +661,28 @@ int main(int argc, char* argv[])
   rv = NS_InitXPCOM(NULL, NULL, NULL);
   NS_ASSERTION( NS_SUCCEEDED(rv), "NS_InitXPCOM failed" );
 
+#ifndef XP_MAC
+  {
+    //----------------------------------------------------------------
+    // XPInstall needs to clean up after any updates that couldn't
+    // be completed because components were in use. This must be done 
+    // **BEFORE** any other components are loaded!
+    //
+    // Will also check to see if AutoReg is required due to version
+    // change or installation of new components
+    //
+    // (scoped in a block to force release of COMPtr)
+    //----------------------------------------------------------------
+    nsCOMPtr<nsISoftwareUpdate> su = do_GetService(kSoftUpdateCID,&rv);
+    if (NS_SUCCEEDED(rv))
+      su->StartupTasks();
+  }
+#endif
+
+
   nsresult result = main1( argc, argv );
 
+
   {
         // Scoping this in a block to force the pref service to be           
         // released.