Don't ensure, in single-process mode, that WebUI render views are the only ones in the process, as …

content/browser/frame_host/render_frame_host_manager.cc

 // Copyright 2013 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/frame_host/render_frame_host_manager.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1205 matching lines @@
   if (render_view_host->IsRenderViewLive())
     return true;
 
   // If the pending navigation is to a WebUI and the RenderView is not in a
   // guest process, tell the RenderViewHost about any bindings it will need
   // enabled.
   if (pending_web_ui() && !render_view_host->GetProcess()->IsIsolatedGuest()) {
     render_view_host->AllowBindings(pending_web_ui()->GetBindings());
   } else {
     // Ensure that we don't create an unprivileged RenderView in a WebUI-enabled
-    // process unless it's swapped out.
-    if (!render_view_host->IsSwappedOut()) {
+    // process unless it's swapped out or we run in single-process mode.
+    bool is_single_process = RenderProcessHost::run_renderer_in_process();

[nasko, 2014/09/29 22:21:48]

nit: why create a local variable when you can just call the method in the if
statement?

[Krzysztof Olczyk, 2014/10/01 10:17:47]

Done

+    if (!render_view_host->IsSwappedOut() && !is_single_process) {
       CHECK(!ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
                 render_view_host->GetProcess()->GetID()));
     }
   }
 
   return delegate_->CreateRenderViewForRenderManager(render_view_host,
                                                      opener_route_id,
                                                      proxy_routing_id,
                                                      for_main_frame_navigation);
 }
@@ skipping 474 matching lines @@
 void RenderFrameHostManager::DeleteRenderFrameProxyHost(
     SiteInstance* instance) {
   RenderFrameProxyHostMap::iterator iter = proxy_hosts_.find(instance->GetId());
   if (iter != proxy_hosts_.end()) {
     delete iter->second;
     proxy_hosts_.erase(iter);
   }
 }
 
 }  // namespace content