Allow extensions to specify that they are not allowed in incognito mode.

chrome/browser/extensions/extension_util.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 "chrome/browser/extensions/extension_util.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/metrics/field_trial.h"
 #include "base/values.h"
@@ skipping 101 matching lines @@
   }
 }
 
 }  // namespace
 
 bool IsIncognitoEnabled(const std::string& extension_id,
                         content::BrowserContext* context) {
   const Extension* extension = ExtensionRegistry::Get(context)->
       GetExtensionById(extension_id, ExtensionRegistry::ENABLED);
   if (extension) {
-    if (!extension->can_be_incognito_enabled())
+    if (!util::CanBeIncognitoEnabled(extension))
       return false;
     // If this is an existing component extension we always allow it to
     // work in incognito mode.
     if (extension->location() == Manifest::COMPONENT)
       return true;
     if (IsWhitelistedForIncognito(extension))
       return true;
   }
   return ExtensionPrefs::Get(context)->IsIncognitoEnabled(extension_id);
 }
 
 void SetIsIncognitoEnabled(const std::string& extension_id,
                            content::BrowserContext* context,
                            bool enabled) {
   ExtensionRegistry* registry = ExtensionRegistry::Get(context);
   const Extension* extension =
       registry->GetExtensionById(extension_id, ExtensionRegistry::EVERYTHING);
 
   if (extension) {
-    if (!extension->can_be_incognito_enabled())
+    if (!util::CanBeIncognitoEnabled(extension))
       return;
 
     // TODO(treib,kalman): Should this be Manifest::IsComponentLocation(..)?
     // (which also checks for EXTERNAL_COMPONENT).
     if (extension->location() == Manifest::COMPONENT) {
       // This shouldn't be called for component extensions unless it is called
       // by sync, for syncable component extensions.
       // See http://crbug.com/112290 and associated CLs for the sordid history.
       DCHECK(sync_helper::IsSyncableComponentExtension(extension));
 
@@ skipping 222 matching lines @@
 }
 
 bool NeedCustodianApprovalForPermissionIncrease() {
   const std::string group_name = base::FieldTrialList::FindFullName(
       kSupervisedUserExtensionPermissionIncreaseFieldTrialName);
   return group_name == "NeedCustodianApproval";
 }
 
 }  // namespace util
 }  // namespace extensions