Remove PermissionsData::ForExtension() completely

extensions/common/permissions/permissions_data.cc

 // Copyright (c) 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 "extensions/common/permissions/permissions_data.h"
 
 #include "base/command_line.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/error_utils.h"
@@ skipping 35 matching lines @@
 
 PermissionsData::~PermissionsData() {
 }
 
 // static
 void PermissionsData::SetPolicyDelegate(PolicyDelegate* delegate) {
   g_policy_delegate = delegate;
 }
 
 // static
-const PermissionsData* PermissionsData::ForExtension(
-    const Extension* extension) {
-  // TODO(rdevlin.cronin): Figure out what we're doing with this (i.e. whether
-  // or not we want to expose PermissionsData on the extension).
-  return extension->permissions_data();
-}
-
-// static
 bool PermissionsData::CanSilentlyIncreasePermissions(
     const Extension* extension) {
   return extension->location() != Manifest::INTERNAL;
 }
 
 // static
 bool PermissionsData::CanExecuteScriptEverywhere(const Extension* extension) {
   if (extension->location() == Manifest::COMPONENT)
     return true;
 
@@ skipping 233 matching lines @@
         GetTabSpecificPermissions(tab_id);
     if (tab_permissions.get() &&
         tab_permissions->explicit_hosts().MatchesSecurityOrigin(url)) {
       return true;
     }
   }
   return false;
 }
 
 }  // namespace extensions