Introduced WebFactory and WebFactoryImpl for constructing web/ classes

third_party/WebKit/Source/web/WebInitializer.h

Index: third_party/WebKit/Source/web/WebInitializer.h
diff --git a/third_party/WebKit/Source/web/WebInitializer.h b/third_party/WebKit/Source/web/WebInitializer.h
new file mode 100644
index 0000000000000000000000000000000000000000..c7fe85243023c9ccccfd26a29bf4b6ef1bad39c2
--- /dev/null
+++ b/third_party/WebKit/Source/web/WebInitializer.h
@@ -0,0 +1,20 @@
+// Copyright 2017 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 WebInitializer_h
+#define WebInitializer_h
+
+#include "core/CoreInitializer.h"
+#include "web/WebExport.h"
+
+namespace blink {
+
+class WEB_EXPORT WebInitializer : public CoreInitializer {
+ public:
+  void Initialize() override;
+};
+
+}  // namespace blink
+
+#endif  // WebInitializer_h