Fix for bug 50234. Added titlebar to the chrome flags. r=ssu

xpinstall/src/nsInstallProgressDialog.cpp

@@ -161,7 +161,7 @@ nsInstallProgressDialog::Open(nsIDialogParamBlock* ioParamBlock)
                                             "sss%ip%ip",
                                             "chrome://communicator/content/xpinstall/xpistatus.xul",
                                             "_blank",
-                                            "chrome",
+                                            "chrome,titlebar",
                                             (const nsIID*)&NS_GET_IID(nsIDialogParamBlock),
                                             (nsISupports*)ioParamBlock,
                                             (const nsIID*)&NS_GET_IID(nsPIXPIManagerCallbacks),

xpinstall/src/nsXPInstallManager.cpp

@@ -271,7 +271,7 @@ PRBool nsXPInstallManager::ConfirmInstall(nsIDialogParamBlock* ioParamBlock)
                                         "sss%ip",
                                         "chrome://communicator/content/xpinstall/institems.xul",
                                         "_blank",
-                                        "chrome,modal",
+                                        "chrome,modal,titlebar",
                                         (const nsIID*)(&NS_GET_IID(nsIDialogParamBlock)),
                                         (nsISupports*)ioParamBlock);