Move existing kSitePerProcess checks to a policy-oracle object

chrome/browser/extensions/app_process_apitest.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 "base/command_line.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
@@ skipping 757 matching lines @@
 
   // Popup window should be in the app's process if site isolation is off;
   // otherwise they should be in different processes.
   const BrowserList* active_browser_list =
       BrowserList::GetInstance(chrome::GetActiveDesktop());
   EXPECT_EQ(2U, active_browser_list->size());
   content::WebContents* popup_contents =
       active_browser_list->get(1)->tab_strip_model()->GetActiveWebContents();
   content::WaitForLoadStop(popup_contents);
 
-  bool should_be_in_same_process =
-      !base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kSitePerProcess);
+  bool should_be_in_same_process = !content::AreAllSitesIsolatedForTesting();
   content::RenderProcessHost* popup_process =
       popup_contents->GetRenderProcessHost();
   EXPECT_EQ(should_be_in_same_process, process == popup_process);
   EXPECT_EQ(should_be_in_same_process,
             process_map->Contains(popup_process->GetID()));
 }
 
 // http://crbug.com/118502
 #if defined(OS_MACOSX) || defined(OS_LINUX)
 #define MAYBE_ReloadAppAfterCrash DISABLED_ReloadAppAfterCrash
@@ skipping 76 matching lines @@
   // Navigate the popup to another process outside the app.
   GURL non_app_url(base_url.Resolve("path3/empty.html"));
   ui_test_utils::NavigateToURL(active_browser_list->get(1), non_app_url);
   SiteInstance* new_instance = popup_contents->GetSiteInstance();
   EXPECT_NE(app_instance, new_instance);
 
   // It should still be in the same BrowsingInstance, allowing postMessage to
   // work.
   EXPECT_TRUE(app_instance->IsRelatedSiteInstance(new_instance));
 }