Handle pointer-events: none in browser process hittesting.

content/browser/compositor/delegated_frame_host.h

Index: content/browser/compositor/delegated_frame_host.h
diff --git a/content/browser/compositor/delegated_frame_host.h b/content/browser/compositor/delegated_frame_host.h
index 21dc4e0c8f95341b2ca5e2cbbdbcb27b28ed4bf4..568f100d4c347297edd00113e5ce8a2c9e73b0de 100644
--- a/content/browser/compositor/delegated_frame_host.h
+++ b/content/browser/compositor/delegated_frame_host.h
@@ -159,7 +159,8 @@ class CONTENT_EXPORT DelegatedFrameHost
   uint32_t GetSurfaceIdNamespace();
   // Returns a null SurfaceId if this DelegatedFrameHost has not yet created
   // a compositor Surface.
-  cc::SurfaceId SurfaceIdAtPoint(const gfx::Point& point,
+  cc::SurfaceId SurfaceIdAtPoint(cc::SurfaceHittestDelegate* delegate,
+                                 const gfx::Point& point,
                                  gfx::Point* transformed_point);
 
   // Given the SurfaceID of a Surface that is contained within this class'