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

content/browser/renderer_host/render_view_host_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 1236 matching lines @@
   // Kill the renderer process if it violates this policy.
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kSitePerProcess) &&
       static_cast<SiteInstanceImpl*>(GetSiteInstance())->HasSite() &&
       validated_params.url != GURL(chrome::kAboutBlankURL)) {
     if (!SiteInstance::IsSameWebSite(GetSiteInstance()->GetBrowserContext(),
                                      GetSiteInstance()->GetSiteURL(),
                                      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.
     }
   }
 
   ChildProcessSecurityPolicyImpl* policy =
       ChildProcessSecurityPolicyImpl::GetInstance();
   // Without this check, an evil renderer can trick the browser into creating
   // a navigation entry for a banned URL.  If the user clicks the back button
   // followed by the forward button (or clicks reload, or round-trips through
   // session restore, etc), we'll think that the browser commanded the
   // renderer to load the URL and grant the renderer the privileges to request
@@ skipping 832 matching lines @@
           GetRoutingID(), snapshot_id, snapshot_size, png));
       return;
     }
   }
 
   Send(new ViewMsg_WindowSnapshotCompleted(
       GetRoutingID(), snapshot_id, gfx::Size(), png));
 }
 
 }  // namespace content