Fix remaining incompatibilities between scoped_ptr and unique_ptr.

components/user_prefs/tracked/tracked_preferences_migration_unittest.cc

 // Copyright 2014 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 "components/user_prefs/tracked/tracked_preferences_migration.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 275 matching lines @@
             base::Bind(&TrackedPreferencesMigrationTest::GetPrefsBack,
                        base::Unretained(this), MOCK_PROTECTED_PREF_STORE),
             std::move(protected_prefs_));
         break;
     }
   }
 
   bool HasPrefs(MockPrefStoreID store_id) {
     switch (store_id) {
       case MOCK_UNPROTECTED_PREF_STORE:
-        return unprotected_prefs_;
+        return !!unprotected_prefs_;
       case MOCK_PROTECTED_PREF_STORE:
-        return protected_prefs_;
+        return !!protected_prefs_;
     }
     NOTREACHED();
     return false;
   }
 
   bool StoreModifiedByMigration(MockPrefStoreID store_id) {
     switch (store_id) {
       case MOCK_UNPROTECTED_PREF_STORE:
         return migration_modified_unprotected_store_;
       case MOCK_PROTECTED_PREF_STORE:
@@ skipping 588 matching lines @@
                        expected_unprotected_values);
 
     base::StringPairs expected_protected_values;
     expected_protected_values.push_back(std::make_pair(
         kProtectedPref, kProtectedPrefValue));
     expected_protected_values.push_back(std::make_pair(
         kPreviouslyUnprotectedPref, kPreviouslyUnprotectedPrefValue));
     VerifyValuesStored(MOCK_PROTECTED_PREF_STORE, expected_protected_values);
   }
 }