diff --git content/browser/renderer_host/render_widget_host_view_aura.cc content/browser/renderer_host/render_widget_host_view_aura.cc
index e327836..17f65e1 100644
--- content/browser/renderer_host/render_widget_host_view_aura.cc
+++ content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -747,8 +747,10 @@ void RenderWidgetHostViewAura::UpdateBackgroundColorFromRenderer(
   background_color_ = color;
 
   bool opaque = SkColorGetA(color) == SK_AlphaOPAQUE;
-  window_->layer()->SetFillsBoundsOpaquely(opaque);
-  window_->layer()->SetColor(color);
+  if (window_) {
+    window_->layer()->SetFillsBoundsOpaquely(opaque);
+    window_->layer()->SetColor(color);
+  }
 }
 
 bool RenderWidgetHostViewAura::IsMouseLocked() {