Implement a prototype to render cross-site iframes in a separate process from their parent.

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index 59dcc9aa530b186e3ac7bfe300f7ae65fc1ec8cc..6e8c603927feeabc206497292cc5136db1a691b8 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -1254,8 +1254,8 @@ void RenderViewHostImpl::OnNavigate(const IPC::Message& msg) {
                                      validated_params.url) ||
         static_cast<SiteInstanceImpl*>(GetSiteInstance())->
             HasWrongProcessForURL(validated_params.url)) {
-      base::KillProcess(process->GetHandle(), RESULT_CODE_KILLED, true);
-      UMA_HISTOGRAM_COUNTS("ChildProcess.ViolatedSitePerProcess", 1);
+      // TODO(nasko): Removed the actual kill process call until out-of-process
+      // iframes is ready to go.
     }
   }