[Origin Trials] Support updates of disabled token list

chrome/common/origin_trials/chrome_origin_trial_policy.h

Index: chrome/common/origin_trials/chrome_origin_trial_policy.h
diff --git a/chrome/common/origin_trials/chrome_origin_trial_policy.h b/chrome/common/origin_trials/chrome_origin_trial_policy.h
index 829c0f607fe327afc594944327bf45703d8357e3..10bbd3f99f799fc379bac63ba96bfde5732dce5f 100644
--- a/chrome/common/origin_trials/chrome_origin_trial_policy.h
+++ b/chrome/common/origin_trials/chrome_origin_trial_policy.h
@@ -22,13 +22,16 @@ class ChromeOriginTrialPolicy : public content::OriginTrialPolicy {
   // OriginTrialPolicy interface
   base::StringPiece GetPublicKey() const override;
   bool IsFeatureDisabled(base::StringPiece feature) const override;
+  bool IsTokenDisabled(base::StringPiece token_signature) const override;
 
   bool SetPublicKeyFromASCIIString(const std::string& ascii_public_key);
   bool SetDisabledFeatures(const std::string& disabled_feature_list);
+  bool SetDisabledTokens(const std::string& disabled_token_list);
 
  private:
   std::string public_key_;
   std::set<std::string> disabled_features_;
+  std::set<std::string> disabled_tokens_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeOriginTrialPolicy);
 };