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 4ef76db9f0702802353b1b4ec9cf0a2bb14a357b..ff99c20b586f86abb3468e3dba73058232c26782 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -1247,8 +1247,8 @@ 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.
     }
   }