Allow command-line arguments to override EF public key

chrome/browser/origin_trials/origin_trial_controller.h

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_ORIGIN_TRIALS_ORIGIN_TRIAL_CONTROLLER_H_
+#define CHROME_BROWSER_ORIGIN_TRIALS_ORIGIN_TRIAL_CONTROLLER_H_
+
+#include "base/macros.h"
+
+namespace base {
+class CommandLine;
+}
+
+class OriginTrialController {
+ public:
+  static const char kFieldTrialName[];
+  static const char kPublicKeyFieldName[];
+
+  // Updates the renderer command line to pass any relevant origin trial
+  // configuration to the renderer at startup. Currently this can include an
+  // updated public key to use for validating tokens. This method is
+  // thread-safe.
+  static void UpdateCommandLineFromFieldTrials(base::CommandLine* command_line);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(OriginTrialController);
+};
+
+#endif  // CHROME_BROWSER_ORIGIN_TRIALS_ORIGIN_TRIAL_CONTROLLER_H_