Fixes for following Linux installer bugs:

http://bugzilla.mozilla.org/show_bug.cgi?id=93240 -- installer window too
narrow for license text
http://bugzilla.mozilla.org/show_bug.cgi?id=98201 -- cancel button does not
respond
http://bugzilla.mozilla.org/show_bug.cgi?id=108282 -- crasher, calling gtk+
function with NULL argument
http://bugzilla.mozilla.org/show_bug.cgi?id=113997 -- mozilla installer
eats 100% CPU

xpinstall/wizard/unix/src2/nsInstallDlg.cpp

@@ -880,11 +880,7 @@ nsInstallDlg::ShowCompleteDlg()
     gtk_widget_grab_default(okButton);
     gtk_widget_show_all(completeDlg);
 
-    while (!bComplete)
-    {
-        XI_GTK_UPDATE_UI();
-    }
-
+    gtk_main();
     gtk_main_quit();
 }
 
@@ -896,6 +892,7 @@ nsInstallDlg::CompleteOK(GtkWidget *aWidget, gpointer aData)
     if (dlg)
         gtk_widget_destroy(dlg);
 
+    gtk_main_quit();
     bComplete = TRUE;
 }
 
@@ -1392,7 +1389,8 @@ nsInstallDlg::InitDLProgress( int isFirst )
 void
 nsInstallDlg::InitInstallProgress()
 {
-    gtk_widget_hide(sDLProgress.vbox);
+    if ( sDLProgress.vbox )
+            gtk_widget_hide(sDLProgress.vbox);
     gCtx->idlg->ShowTable();
 }
 

xpinstall/wizard/unix/src2/nsLicenseDlg.cpp

@@ -156,6 +156,8 @@ nsLicenseDlg::Show(int aDirection)
         GtkWidget *text = gtk_text_new(NULL, NULL);
         GdkFont *font = gdk_font_load( LICENSE_FONT );
         gtk_text_set_editable(GTK_TEXT(text), FALSE);
+        gtk_text_set_word_wrap(GTK_TEXT(text), TRUE);
+        gtk_text_set_line_wrap(GTK_TEXT(text), TRUE);
         gtk_table_attach(GTK_TABLE(mTable), text, 1, 2, 0, 1,
             static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND),
             static_cast<GtkAttachOptions>(GTK_FILL | GTK_EXPAND),