Add disabled origin trial feature list

chrome/common/origin_trials/origin_trial_key_manager.h

Index: chrome/common/origin_trials/origin_trial_key_manager.h
diff --git a/chrome/common/origin_trials/origin_trial_key_manager.h b/chrome/common/origin_trials/origin_trial_key_manager.h
index e46e7be11f7d7622753970267a6e46dbcdb4e6b3..e1f03925548a458fc39a2eae354837f7f7462420 100644
--- a/chrome/common/origin_trials/origin_trial_key_manager.h
+++ b/chrome/common/origin_trials/origin_trial_key_manager.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_COMMON_ORIGIN_TRIALS_ORIGIN_TRIAL_KEY_MANAGER_H_
 #define CHROME_COMMON_ORIGIN_TRIALS_ORIGIN_TRIAL_KEY_MANAGER_H_
 
+#include <set>
 #include <string>
 
 #include "base/macros.h"
@@ -21,11 +22,14 @@ class OriginTrialKeyManager {
 
   bool SetPublicKeyFromASCIIString(const std::string& ascii_public_key);
   base::StringPiece GetPublicKey() const;
+  bool SetDisabledFeatures(const std::string& disabled_feature_list);
+  bool IsFeatureDisabled(base::StringPiece feature);

[Sorin Jianu, 2016/06/07 17:20:24]

Most likely, StringPiece can be forward declared.

[iclelland, 2016/06/08 13:37:56]

I don't think so -- it's a typedef to a template; we could forward declare the
BasicStringPiece template class here, I guess, and then redefine the typedef,
but I don't see that anywhere else in the codebase.

 
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
  private:
   std::string public_key_;
+  std::set<std::string> disabled_features_;
 
   DISALLOW_COPY_AND_ASSIGN(OriginTrialKeyManager);
 };