Update CM API IDL to use SecureContext

chrome/browser/flag_descriptions.h

 // Copyright 2017 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_FLAG_DESCRIPTIONS_H_
 #define CHROME_BROWSER_FLAG_DESCRIPTIONS_H_
 
 // Includes needed for macros allowing conditional compilation of some strings.
 #include "build/build_config.h"
 #include "build/buildflag.h"
@@ skipping 1009 matching lines @@
 
 // Description for the Run all Flash in Allow mode feature.
 extern const char kRunAllFlashInAllowModeDescription[];
 
 // Name of the flag to turn on experiental pinch to scale.
 extern const char kPinchScaleName[];
 
 // Description of the flag to turn on experiental pinch to scale.
 extern const char kPinchScaleDescription[];
 
-// Name for the flag to enable 'navigator.credentials'.
-extern const char kCredentialManagerApiName[];
-
-// Description for the flag to enable 'navigator.credentials'.
-extern const char kCredentialManagerApiDescription[];
-
 // Name for the flag to reduce referer granularity.
 extern const char kReducedReferrerGranularityName[];
 
 // Description for the flag to reduce referer granularity.
 extern const char kReducedReferrerGranularityDescription[];
 
 #if defined(OS_CHROMEOS)
 
 // Name for the flag to enable the new UI service.
 extern const char kUseMashName[];
@@ skipping 2258 matching lines @@
 
 // Description of the autoplay policy that has no user gesture requirements.
 extern const char kAutoplayPolicyNoUserGestureRequired[];
 
 // Description of the autoplay policy that requires a user gesture.
 extern const char kAutoplayPolicyUserGestureRequired[];
 
 }  // namespace flag_descriptions
 
 #endif  // CHROME_BROWSER_FLAG_DESCRIPTIONS_H_