add a new, blank version of content settings so that a new UI may be prototyped

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 4b600e20fcfedca48b11da36bda09bc2e3f73e7c..dd1dee089eb877749a0c964a73e991ed2805e507 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -192,6 +192,9 @@ const char kComponentUpdaterDebug[]         = "component-updater-debug";
 // conflicts and warn the user.
 const char kConflictingModulesCheck[]       = "conflicting-modules-check";
 
+// Toggles a new version of the content settings dialog in options.
+const char kContentSettings2[]              = "new-content-settings";
+
 // The Country we should use. This is normally obtained from the operating
 // system during first run and cached in the preferences afterwards. This is a
 // string value, the 2 letter code from ISO 3166-1.