Add disabled origin trial feature list

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 b67e497148778b6c2e4798da4e4cdd82af242263..26d60c5578ded0fa091291758d2c80f2fa1fda15 100644
--- a/chrome/common/chrome_switches.cc
+++ b/chrome/common/chrome_switches.cc
@@ -765,6 +765,10 @@ const char kOpenInNewWindow[]               = "new-window";
 // chrome process started. (See ProcessSingleton for more details.)
 const char kOriginalProcessStartTime[]      = "original-process-start-time";
 
+// Contains a list of experimental feature names which should not be included in
+// origin trials. Names should be separated by "|" characters.
+const char kOriginTrialDisabledFeatures[] = "origin-trial-disabled-features";
+
 // Overrides the default public key for checking origin trial tokens.
 const char kOriginTrialPublicKey[] = "origin-trial-public-key";