Turn NULL used as int to 0.

chrome/test/render_view_test.cc

Index: chrome/test/render_view_test.cc
diff --git a/chrome/test/render_view_test.cc b/chrome/test/render_view_test.cc
index 2f8943d06f495e67b211d97e80e04458866f4e93..54fde06d2ecd524a115a3da18b6cf8549c54ff3d 100644
--- a/chrome/test/render_view_test.cc
+++ b/chrome/test/render_view_test.cc
@@ -96,7 +96,7 @@ void RenderViewTest::SetUp() {
   render_thread_.set_routing_id(kRouteId);
 
   // This needs to pass the mock render thread to the view.
-  view_ = RenderView::Create(&render_thread_, NULL, kOpenerId,
+  view_ = RenderView::Create(&render_thread_, 0, kOpenerId,
                              RendererPreferences(), WebPreferences(),
                              new SharedRenderViewCounter(0), kRouteId);