Upstream chrome://flags & chrome://ui-alternatives iOS WebUI.

ios/public/test/fake_string_provider.h

 // Copyright 2013 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 IOS_PUBLIC_TEST_FAKE_STRING_PROVIDER_H_
 #define IOS_PUBLIC_TEST_FAKE_STRING_PROVIDER_H_
 
 #include "base/compiler_specific.h"
 #include "ios/public/provider/chrome/browser/string_provider.h"
 
 namespace ios {
 
 // An impementation of StringProvider for use in tests.
 class FakeStringProvider : public StringProvider {
  public:
   FakeStringProvider();
   ~FakeStringProvider() override;
 
   // StringProvider implementation
   std::string GetOmniboxCopyUrlString() override;
-  int GetAppleFlagsTableTitleID() override;
-  int GetAppleFlagsNoExperimentsAvailableID() override;
   base::string16 GetSpoofingInterstitialTitle() override;
   base::string16 GetSpoofingInterstitialHeadline() override;
   base::string16 GetSpoofingInterstitialMessage() override;
   base::string16 GetSpoofingInterstitialDetails() override;
   base::string16 GetSpoofingInterstitialFailure() override;
   int GetUnsafePortTitleID() override;
   int GetUnsafePortHeadlineID() override;
   int GetUnsafePortMessageID() override;
   int GetUnsafePortDetailsID() override;
   base::string16 GetDoneString() override;
   base::string16 GetOKString() override;
   base::string16 GetProductName() override;
 };
 
 }  // namespace ios
 
 #endif  // IOS_PUBLIC_TEST_FAKE_STRING_PROVIDER_H_