Remove SiteIsolationPolicy::IsSwappedOutStateForbidden().

content/common/site_isolation_policy.h

 // Copyright 2015 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.
 
 #ifndef CONTENT_COMMON_SITE_ISOLATION_POLICY_H_
 #define CONTENT_COMMON_SITE_ISOLATION_POLICY_H_
 
 #include "base/macros.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
@@ skipping 25 matching lines @@
 
   // Returns true if every site should be placed in a dedicated process.
   static bool UseDedicatedProcessesForAllSites();
 
   // Returns true if navigation and history code should maintain per-frame
   // navigation entries. This is an in-progress feature related to site
   // isolation, so the return value is currently tied to --site-per-process.
   // TODO(creis, avi): Make this the default, and eliminate this.
   static bool UseSubframeNavigationEntries();
 
-  // Returns true if we are currently in a mode where the swapped out state
-  // should not be used. Currently (as an implementation strategy) swapped out
-  // is forbidden under --site-per-process, but our goal is to eliminate the
-  // mode entirely. In code that deals with the swapped out state, prefer calls
-  // to this function over consulting the switches directly. It will be easier
-  // to grep, and easier to rip out.
-  //
-  // TODO(nasko): When swappedout:// is eliminated entirely, this function
-  // should be removed and its callers cleaned up.
-  static bool IsSwappedOutStateForbidden();
-
  private:
   SiteIsolationPolicy();  // Not instantiable.
 
   DISALLOW_COPY_AND_ASSIGN(SiteIsolationPolicy);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SITE_ISOLATION_POLICY_H_