Fix registerProtocolHandler implementation on Windows 8 and 10.

chrome/installer/util/scoped_user_protocol_entry_unittest.cc

 // Copyright 2015 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/installer/util/scoped_user_protocol_entry.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/string16.h"
 #include "base/test/test_reg_util_win.h"
 #include "base/win/registry.h"
@@ skipping 19 matching lines @@
   void CreateNewRegistryValue(const base::string16& key_path,
                               const base::string16& name,
                               const base::string16& value) {
     ScopedVector<RegistryEntry> entries;
     entries.push_back(new RegistryEntry(key_path, name, value));
     ASSERT_TRUE(ShellUtil::AddRegistryEntries(HKEY_CURRENT_USER, entries));
   }
 
   void CreateScopedUserProtocolEntryAndVerifyRegistryValue(
       const base::string16& expected_entry_value) {
-    entry_ = base::WrapUnique(new ScopedUserProtocolEntry());
+    entry_ = base::WrapUnique(new ScopedUserProtocolEntry(L"http"));
     ASSERT_TRUE(RegistryEntry(kProtocolEntryKeyPath, kProtocolEntryName,
                               expected_entry_value)
                     .ExistsInRegistry(RegistryEntry::LOOK_IN_HKCU));
   }
 
   registry_util::RegistryOverrideManager registry_overrides_manager_;
   std::unique_ptr<ScopedUserProtocolEntry> entry_;
 };
 
 const wchar_t ScopedUserProtocolEntryTest::kProtocolEntryKeyPath[] =
@@ skipping 66 matching lines @@
 
 TEST_F(ScopedUserProtocolEntryTest, KeyHasBeenDeletedByOthersTest) {
   CreateScopedUserProtocolEntryAndVerifyRegistryValue(base::string16());
   base::win::RegKey key(HKEY_CURRENT_USER, L"", KEY_WRITE);
   EXPECT_EQ(ERROR_SUCCESS, key.DeleteKey(kProtocolEntryKeyPath));
   entry_.reset();
   ASSERT_FALSE(
       RegistryEntry(kProtocolEntryKeyPath, kProtocolEntryName, base::string16())
           .KeyExistsInRegistry(RegistryEntry::LOOK_IN_HKCU));
 }