Remove a bunch of dead code around WindowFeatures

third_party/WebKit/Source/core/page/WindowFeaturesTest.cpp

 // 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 "core/page/WindowFeatures.h"
+#include "core/page/CreateWindow.h"
 
 #include <gtest/gtest.h>
 #include "platform/wtf/text/WTFString.h"
+#include "public/web/WebWindowFeatures.h"
 
 namespace blink {
 
 using WindowFeaturesTest = ::testing::Test;
 
 TEST_F(WindowFeaturesTest, NoOpener) {
   static const struct {
     const char* feature_string;
     bool noopener;
   } kCases[] = {
       {"", false},
       {"something", false},
       {"something, something", false},
       {"notnoopener", false},
       {"noopener", true},
       {"something, noopener", true},
       {"noopener, something", true},
       {"NoOpEnEr", true},
   };
 
   for (const auto& test : kCases) {
-    WindowFeatures features(test.feature_string);
-    EXPECT_EQ(test.noopener, features.noopener)
+    EXPECT_EQ(test.noopener,
+              GetWindowFeaturesFromString(test.feature_string).noopener)
         << "Testing '" << test.feature_string << "'";
   }
 }
 
 }  // namespace blink