Back to creating a new GC for each expose.

The style (or at least the GCs) are shared across widgets, so they shouldn't
be modified, or should be restored.  Creating a GC should be cheap enough, I
was overthinking this.

Review URL: http://codereview.chromium.org/100161


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@14845 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/autocomplete/autocomplete_popup_view_gtk.cc

@@ -388,8 +388,7 @@ gboolean AutocompletePopupViewGtk::HandleExpose(GtkWidget* widget,
     return TRUE;
 
   GdkDrawable* drawable = GDK_DRAWABLE(event->window);
-  // We don't actually care about the style, we just need a GC.
-  GdkGC* gc = widget->style->black_gc;
+  GdkGC* gc = gdk_gc_new(drawable);
 
   // kBorderColor is unallocated, so use the GdkRGB routine.
   gdk_gc_set_rgb_fg_color(gc, &kBorderColor);