Fixes the interactive default browser UX for policy setting

chrome/browser/custom_handlers/protocol_handler_registry_unittest.cc

 // 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.
 
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 
 #include <stddef.h>
 
 #include <set>
 
@@ skipping 206 matching lines @@
   FakeDelegate* delegate_;
 };
 
 class FakeProtocolClientWorker
     : public shell_integration::DefaultProtocolClientWorker {
  public:
   FakeProtocolClientWorker(
       shell_integration::DefaultWebClientObserver* observer,
       const std::string& protocol,
       bool force_failure)
-      : shell_integration::DefaultProtocolClientWorker(observer, protocol),
+      : shell_integration::DefaultProtocolClientWorker(
+            observer,
+            protocol,
+            /*delete_observer*/ true),
         force_failure_(force_failure) {}
 
  private:
   ~FakeProtocolClientWorker() override {}
 
   void CheckIsDefault() override {
     shell_integration::DefaultWebClientState state =
         shell_integration::IS_DEFAULT;
     if (force_failure_)
       state = shell_integration::NOT_DEFAULT;
 
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&FakeProtocolClientWorker::OnCheckIsDefaultComplete, this,
                    state));
   }
 
-  void SetAsDefault(bool interactive_permitted) override {
+  void SetAsDefault() override {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&FakeProtocolClientWorker::OnSetAsDefaultAttemptComplete,
                    this, AttemptResult::SUCCESS));
   }
 
  private:
   bool force_failure_;
 };
 
@@ skipping 847 matching lines @@
   // added to pref.
   ASSERT_EQ(InPrefIgnoredHandlerCount(), 2);
   ASSERT_EQ(InMemoryIgnoredHandlerCount(), 4);
 
   registry()->RemoveIgnoredHandler(p2u1);
 
   // p2u1 installed by user and policy, so it is removed from pref alone.
   ASSERT_EQ(InPrefIgnoredHandlerCount(), 1);
   ASSERT_EQ(InMemoryIgnoredHandlerCount(), 4);
 }