| Index: content/browser/frame_host/render_frame_host_impl.cc | 
| diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc | 
| index e24f70a6b6902c5bae10d4b94b946ca584a12f63..c5e39104d4ae34d12f78c73daa3c418e578a4f0c 100644 | 
| --- a/content/browser/frame_host/render_frame_host_impl.cc | 
| +++ b/content/browser/frame_host/render_frame_host_impl.cc | 
| @@ -62,6 +62,7 @@ | 
| #include "content/public/common/content_constants.h" | 
| #include "content/public/common/content_switches.h" | 
| #include "content/public/common/isolated_world_ids.h" | 
| +#include "content/public/common/site_isolation_policy.h" | 
| #include "content/public/common/url_constants.h" | 
| #include "content/public/common/url_utils.h" | 
| #include "ui/accessibility/ax_tree.h" | 
| @@ -1317,8 +1318,7 @@ void RenderFrameHostImpl::OnBeginNavigation( | 
| } | 
|  | 
| void RenderFrameHostImpl::OnDispatchLoad() { | 
| -  CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch( | 
| -      switches::kSitePerProcess)); | 
| +  CHECK(SiteIsolationPolicy::AreCrossProcessFramesPossible()); | 
| // Only frames with an out-of-process parent frame should be sending this | 
| // message. | 
| RenderFrameProxyHost* proxy = | 
|  |