[New Tab Page] Add Field Trial support to the Local NTP

chrome/common/chrome_switches.cc

Index: chrome/common/chrome_switches.cc
diff --git a/chrome/common/chrome_switches.cc b/chrome/common/chrome_switches.cc
index 08c401be8dc85af5d6de5a752472ffb4c7a5d8ac..53a93c2ddcb43a5e20617f66f7d2d404ff3130c4 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -274,6 +274,9 @@ const char kDisableMinimizeOnSecondLauncherItemClick[] =
 // Disables the menu on the NTP for accessing sessions from other devices.
 const char kDisableNTPOtherSessionsMenu[]   = "disable-ntp-other-sessions-menu";
 
+// Disables the new NTP design.
+const char kDisableNewNTPDesign[]           = "disable-new-ntp-design";
+
 // Disable auto-reload of error pages if offline.
 const char kDisableOfflineAutoReload[]       = "disable-offline-auto-reload";
 
@@ -485,6 +488,9 @@ const char kEnableNaCl[]                    = "enable-nacl";
 // Enables the network-related benchmarking extensions.
 const char kEnableNetBenchmarking[]         = "enable-net-benchmarking";
 
+// Enables the new NTP design.
+const char kEnableNewNTPDesign[]            = "enable-new-ntp-design";
+
 // 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";