Viewing cached webpages while offline is not available on Chrome OS

chrome/common/chrome_switches.cc

 // Copyright (c) 2012 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/chrome_switches.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 
 namespace switches {
@@ skipping 241 matching lines @@
 // issues relating to IPv6, but shouldn't otherwise be needed. Be sure to file
 // bugs if something isn't working properly in the presence of IPv6. This flag
 // can be overidden by the "enable-ipv6" flag.
 const char kDisableIPv6[]                   = "disable-ipv6";
 
 // Disable the behavior that the second click on a launcher item (the click when
 // the item is already active) minimizes the item.
 const char kDisableMinimizeOnSecondLauncherItemClick[] =
     "disable-minimize-on-second-launcher-item-click";
 
+// Disables the new offline error page generated by NetErrorHelper for ChromeOS
+// and instead uses the old error page generated by OfflineResourceThrottle.
+const char kDisableNewOfflineErrorPage[] = "disable-new-offline-error-page";
+
 // Disables the menu on the NTP for accessing sessions from other devices.
 const char kDisableNTPOtherSessionsMenu[]   = "disable-ntp-other-sessions-menu";
 
 // Disable auto-reload of error pages if offline.
 const char kDisableOfflineAutoReload[]       = "disable-offline-auto-reload";
 
 // Disable only auto-reloading error pages when the tab is visible.
 const char kDisableOfflineAutoReloadVisibleOnly[] =
     "disable-offline-auto-reload-visible-only";
 
@@ skipping 178 matching lines @@
 // Runs the Native Client inside the renderer process and enables GPU plugin
 // (internally adds lEnableGpuPlugin to the command line).
 const char kEnableNaCl[]                    = "enable-nacl";
 
 // Enables the network-related benchmarking extensions.
 const char kEnableNetBenchmarking[]         = "enable-net-benchmarking";
 
 // Enables the new bookmark app system.
 const char kEnableNewBookmarkApps[] = "enable-new-bookmark-apps";
 
+// Enables the new offline error page generated by NetErrorHelper for ChromeOS
+// and disables the use of the old error page generated by
+// OfflineResourceThrottle.
+const char kEnableNewOfflineErrorPage[] = "enable-new-offline-error-page";
+
 // Enables NPN with HTTP. It means NPN is enabled but SPDY won't be used.
 // HTTP is still used for all requests.
 const char kEnableNpnHttpOnly[]             = "enable-npn-http";
 
 // Enable auto-reload of error pages if offline.
 const char kEnableOfflineAutoReload[]       = "enable-offline-auto-reload";
 
 // Only auto-reload error pages when the tab is visible.
 const char kEnableOfflineAutoReloadVisibleOnly[] =
     "enable-offline-auto-reload-visible-only";
@@ skipping 889 matching lines @@
 bool SettingsWindowEnabled() {
 #if defined(OS_CHROMEOS)
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(
       ::switches::kDisableSettingsWindow);
 #else
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       ::switches::kEnableSettingsWindow);
 #endif
 }
 
+// Will return true as a default value if neither the
+// "enable-new-offline-error-page" nor "disable-new-offline-error-page" is
+// available.
+bool NewOfflineErrorPageEnabled() {
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      ::switches::kEnableNewOfflineErrorPage))
+    return true;
+
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+      ::switches::kDisableNewOfflineErrorPage))
+    return false;
+
+  return true;
+}
+
 #if defined(OS_CHROMEOS)
 bool PowerOverlayEnabled() {
   return base::CommandLine::ForCurrentProcess()->HasSwitch(
       ::switches::kEnablePowerOverlay);
 }
 #endif
 
 // -----------------------------------------------------------------------------
 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
 //
 // You were going to just dump your switches here, weren't you? Instead, please
 // put them in alphabetical order above, or in order inside the appropriate
 // ifdef at the bottom. The order should match the header.
 // -----------------------------------------------------------------------------
 
 }  // namespace switches