Move existing kSitePerProcess checks to a policy-oracle object

content/browser/frame_host/render_frame_host_manager_browsertest.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 <set>
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
@@ skipping 310 matching lines @@
   Shell* new_shell = new_shell_observer.GetShell();
 
   // Wait for the cross-site transition in the new tab to finish.
   EXPECT_TRUE(WaitForLoadStop(new_shell->web_contents()));
   EXPECT_EQ("/files/title2.html",
             new_shell->web_contents()->GetLastCommittedURL().path());
 
   // Should have the same SiteInstance unless we're in site-per-process mode.
   scoped_refptr<SiteInstance> blank_site_instance(
       new_shell->web_contents()->GetSiteInstance());
-  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kSitePerProcess))
+  if (AreAllSitesIsolatedForTesting())
+    EXPECT_NE(orig_site_instance, blank_site_instance);
+  else
     EXPECT_EQ(orig_site_instance, blank_site_instance);
-  else
-    EXPECT_NE(orig_site_instance, blank_site_instance);
 }
 
 // Test for crbug.com/24447.  Following a cross-site link with rel=noreferrer
 // and no target=_blank should not create a new SiteInstance.
 IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest,
                        DontSwapProcessWithOnlyRelNoreferrer) {
   StartServer();
 
   // Load a page with links that open in a new window.
   std::string replacement_path;
@@ skipping 20 matching lines @@
   WaitForLoadStop(shell()->web_contents());
 
   // Opens in same window.
   EXPECT_EQ(1u, Shell::windows().size());
   EXPECT_EQ("/files/title2.html",
             shell()->web_contents()->GetLastCommittedURL().path());
 
   // Should have the same SiteInstance unless we're in site-per-process mode.
   scoped_refptr<SiteInstance> noref_site_instance(
       shell()->web_contents()->GetSiteInstance());
-  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kSitePerProcess))
+  if (AreAllSitesIsolatedForTesting())
+    EXPECT_NE(orig_site_instance, noref_site_instance);
+  else
     EXPECT_EQ(orig_site_instance, noref_site_instance);
-  else
-    EXPECT_NE(orig_site_instance, noref_site_instance);
 }
 
 // Test for crbug.com/116192.  Targeted links should still work after the
 // named target window has swapped processes.
 IN_PROC_BROWSER_TEST_F(RenderFrameHostManagerTest,
                        AllowTargetedNavigationsAfterSwap) {
   StartServer();
 
   // Load a page with links that open in a new window.
   std::string replacement_path;
@@ skipping 1540 matching lines @@
   EXPECT_FALSE(opener_rfph->is_render_frame_proxy_live());
 
   // Re-navigate the popup to the same URL and check that this recreates the
   // opener's swapped out RVH and proxy in the foo.com SiteInstance.
   EXPECT_TRUE(NavigateToURL(new_shell, cross_site_url));
   EXPECT_TRUE(opener_rvh->IsRenderViewLive());
   EXPECT_TRUE(opener_rfph->is_render_frame_proxy_live());
 }
 
 }  // namespace content