Hide BrowsingInstance from all but SiteInstance, as intended by design.

chrome/browser/extensions/extension_host.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 "chrome/browser/extensions/extension_host.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
@@ skipping 13 matching lines @@
 #include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_view_type.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
-#include "content/browser/browsing_instance.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/site_instance.h"
 #include "content/browser/tab_contents/tab_contents_view.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/browser_resources.h"
 #include "grit/chromium_strings.h"
@@ skipping 71 matching lines @@
 ////////////////
 // ExtensionHost
 
 ExtensionHost::ExtensionHost(const Extension* extension,
                              SiteInstance* site_instance,
                              const GURL& url,
                              content::ViewType host_type)
     : extension_(extension),
       extension_id_(extension->id()),
       profile_(Profile::FromBrowserContext(
-          site_instance->browsing_instance()->browser_context())),
+          site_instance->GetBrowserContext())),
       render_view_host_(NULL),
       did_stop_loading_(false),
       document_element_available_(false),
       initial_url_(url),
       ALLOW_THIS_IN_INITIALIZER_LIST(
           extension_function_dispatcher_(profile_, this)),
       extension_host_type_(host_type),
       associated_web_contents_(NULL) {
   host_contents_.reset(WebContents::Create(
       profile_, site_instance, MSG_ROUTING_NONE, NULL, NULL));
@@ skipping 416 matching lines @@
   browser::Navigate(&params);
 }
 
 
 void ExtensionHost::RenderViewReady() {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSION_HOST_CREATED,
       content::Source<Profile>(profile_),
       content::Details<ExtensionHost>(this));
 }