Handle pointer-events: none in browser process hittesting.

content/browser/renderer_host/render_widget_host_view_aura.h

Index: content/browser/renderer_host/render_widget_host_view_aura.h
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.h b/content/browser/renderer_host/render_widget_host_view_aura.h
index e5d4b232ec0acfb3302b938d1a436826ded3a269..c25d83e58691d47f845d72934c13b96276c6bfe7 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.h
+++ b/content/browser/renderer_host/render_widget_host_view_aura.h
@@ -193,7 +193,8 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
   void LockCompositingSurface() override;
   void UnlockCompositingSurface() override;
   uint32_t GetSurfaceIdNamespace() override;
-  uint32_t SurfaceIdNamespaceAtPoint(const gfx::Point& point,
+  uint32_t SurfaceIdNamespaceAtPoint(cc::SurfaceHittestDelegate* delegate,
+                                     const gfx::Point& point,
                                      gfx::Point* transformed_point) override;
   void ProcessMouseEvent(const blink::WebMouseEvent& event) override;
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event) override;