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

ios/public/provider/chrome/browser/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_PROVIDER_CHROME_BROWSER_STRING_PROVIDER_H_
 #define IOS_PUBLIC_PROVIDER_CHROME_BROWSER_STRING_PROVIDER_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
@@ skipping 12 matching lines @@
 //      is no longer necessary.
 class StringProvider {
  public:
   StringProvider() {}
   virtual ~StringProvider() {}
 
   // Returns the string to display in the omnibox context menu for the user to
   // copy the URL for the current search query into the pasteboard.
   virtual std::string GetOmniboxCopyUrlString() = 0;
 
-  // Returns the resource IDs for the strings that are used in the Apple flags
-  // page (i.e., chrome://ui-alternatives).
-  virtual int GetAppleFlagsTableTitleID() = 0;
-  virtual int GetAppleFlagsNoExperimentsAvailableID() = 0;
-
   // Return the strings used to display spoofing attempt errors.
   virtual base::string16 GetSpoofingInterstitialTitle() = 0;
   virtual base::string16 GetSpoofingInterstitialHeadline() = 0;
   virtual base::string16 GetSpoofingInterstitialMessage() = 0;
   virtual base::string16 GetSpoofingInterstitialDetails() = 0;
   virtual base::string16 GetSpoofingInterstitialFailure() = 0;
 
   // Return the resource IDs used to display unsafe port errors.
   virtual int GetUnsafePortTitleID() = 0;
   virtual int GetUnsafePortHeadlineID() = 0;
   virtual int GetUnsafePortMessageID() = 0;
   virtual int GetUnsafePortDetailsID() = 0;
 
   // Returns a generic "Done" string.
   virtual base::string16 GetDoneString() = 0;
   // Returns a generic "OK" string.
   virtual base::string16 GetOKString() = 0;
   // Returns the product name (e.g. "Google Chrome").
   virtual base::string16 GetProductName() = 0;
 };
 
 }  // namespace ios
 
 #endif  // IOS_PUBLIC_PROVIDER_CHROME_BROWSER_STRING_PROVIDER_H_