Fixes the interactive default browser UX for policy setting

chrome/browser/custom_handlers/protocol_handler_registry.h

 // Copyright (c) 2012 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_CUSTOM_HANDLERS_PROTOCOL_HANDLER_REGISTRY_H_
 #define CHROME_BROWSER_CUSTOM_HANDLERS_PROTOCOL_HANDLER_REGISTRY_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 35 matching lines @@
       : public shell_integration::DefaultWebClientObserver {
    public:
     explicit DefaultClientObserver(ProtocolHandlerRegistry* registry);
     ~DefaultClientObserver() override;
 
     // Get response from the worker regarding whether Chrome is the default
     // handler for the protocol.
     void SetDefaultWebClientUIState(
         shell_integration::DefaultWebClientUIState state) override;
 
-    bool IsInteractiveSetDefaultPermitted() override;
-
     // Give the observer a handle to the worker, so we can find out the protocol
     // when we're called and also tell the worker if we get deleted.
     void SetWorker(shell_integration::DefaultProtocolClientWorker* worker);
 
    protected:
     shell_integration::DefaultProtocolClientWorker* worker_;
 
    private:
-    bool IsOwnedByWorker() override;
-
     // This is a raw pointer, not reference counted, intentionally. In general
     // subclasses of DefaultWebClientObserver are not able to be refcounted
     // e.g. the browser options page
     ProtocolHandlerRegistry* registry_;
 
     DISALLOW_COPY_AND_ASSIGN(DefaultClientObserver);
   };
 
   // |Delegate| provides an interface for interacting asynchronously
   // with the underlying OS for the purposes of registering Chrome
@@ skipping 308 matching lines @@
 
   // Copy of registry data for use on the IO thread. Changes to the registry
   // are posted to the IO thread where updates are applied to this object.
   scoped_refptr<IOThreadDelegate> io_thread_delegate_;
 
   DefaultClientObserverList default_client_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(ProtocolHandlerRegistry);
 };
 #endif  // CHROME_BROWSER_CUSTOM_HANDLERS_PROTOCOL_HANDLER_REGISTRY_H_