<webview>: Resolve relative paths as chrome-extension: URLs

content/browser/web_contents/web_contents_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/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 434 matching lines @@
 BrowserPluginGuest* WebContentsImpl::CreateGuest(
     BrowserContext* browser_context,
     SiteInstance* site_instance,
     int guest_instance_id,
     scoped_ptr<base::DictionaryValue> extra_params) {
   WebContentsImpl* new_contents = new WebContentsImpl(browser_context, NULL);
 
   // This makes |new_contents| act as a guest.
   // For more info, see comment above class BrowserPluginGuest.
   BrowserPluginGuest::Create(
-      guest_instance_id, new_contents, extra_params.Pass());
+      guest_instance_id, site_instance, new_contents, extra_params.Pass());

[Charlie Reis, 2013/10/30 20:42:20]

Which SiteInstance is this?  How does it get the extension ID in the WebUI case?

 
   WebContents::CreateParams create_params(browser_context, site_instance);
   new_contents->Init(create_params);
 
   // We are instantiating a WebContents for browser plugin. Set its subframe bit
   // to true.
   static_cast<RenderViewHostImpl*>(
       new_contents->GetRenderViewHost())->set_is_subframe(true);
 
   return new_contents->browser_plugin_guest_.get();
@@ skipping 3182 matching lines @@
 }
 
 void WebContentsImpl::OnFrameRemoved(
     RenderViewHostImpl* render_view_host,
     int64 frame_id) {
    FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                      FrameDetached(render_view_host, frame_id));
 }
 
 }  // namespace content