Allow policy refresh rate to be configured through policy.

chrome/common/pref_names.cc

 // Copyright (c) 2011 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/common/pref_names.h"
 
 namespace prefs {
 
 // *************** PROFILE PREFS ***************
 // These are attached to the user profile
@@ skipping 617 matching lines @@
 
 // Boolean that is true when the tabstrip is to be laid out vertically down the
 // side of the browser window.
 const char kUseVerticalTabs[] = "tabs.use_vertical_tabs";
 
 // Boolean that is true when the translate feature is enabled.
 const char kEnableTranslate[] = "translate.enabled";
 
 const char kPinnedTabs[] = "pinned_tabs";
 
+// Integer that specifies the policy refresh rate in milliseconds. Not all
+// values are meaningful, so it is clamped to a sane range by the policy
+// provider.
+const char kPolicyRefreshRate[] = "policy.refresh_rate";
+
 // Integer containing the default Geolocation content setting.
 const char kGeolocationDefaultContentSetting[] =
     "geolocation.default_content_setting";
 
 // Dictionary that maps [frame, toplevel] to their Geolocation content setting.
 const char kGeolocationContentSettings[] = "geolocation.content_settings";
 
 // Preference to disable 3D APIs (WebGL, Pepper 3D).
 const char kDisable3DAPIs[] = "disable_3d_apis";
 
@@ skipping 522 matching lines @@
 const char kManagedDefaultPluginsSetting[] =
     "profile.managed_default_content_settings.plugins";
 const char kManagedDefaultPopupsSetting[] =
     "profile.managed_default_content_settings.popups";
 
 // Dictionary for storing the set of known background pages (keys are extension
 // IDs of background page owners, value is a boolean that is true if the user
 // needs to acknowledge this page.
 const char kKnownBackgroundPages[] = "background_pages.known";
 }  // namespace prefs