Fix V8 bindings for named constructors to set prototype object correctly

third_party/WebKit/Source/bindings/core/v8/V8PrivateProperty.h

 // Copyright 2016 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 V8PrivateProperty_h
 #define V8PrivateProperty_h
 
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "bindings/core/v8/ScriptPromiseProperties.h"
 #include "bindings/core/v8/V8BindingMacros.h"
@@ skipping 11 matching lines @@
 
 // Apply |X| for each pair of (InterfaceName, PrivateKeyName).
 #define V8_PRIVATE_PROPERTY_FOR_EACH(X) \
   X(CustomEvent, Detail)                \
   X(DOMException, Error)                \
   X(ErrorEvent, Error)                  \
   X(IDBObserver, Callback)              \
   X(IntersectionObserver, Callback)     \
   X(MessageEvent, CachedData)           \
   X(MutationObserver, Callback)         \
+  X(NamedConstructor, Initialized)      \
   X(PerformanceObserver, Callback)      \
   X(SameObject, NotificationActions)    \
   X(SameObject, NotificationData)       \
   X(SameObject, NotificationVibrate)    \
   X(V8NodeFilterCondition, Filter)      \
   X(Window, DocumentCachedAccessor)
 
 // The getter's name for a private property.
 #define V8_PRIVATE_PROPERTY_GETTER_NAME(InterfaceName, PrivateKeyName) \
   get##InterfaceName##PrivateKeyName
@@ skipping 127 matching lines @@
 #define V8_PRIVATE_PROPERTY_DECLARE_MEMBER(InterfaceName, KeyName) \
   ScopedPersistent<v8::Private> V8_PRIVATE_PROPERTY_MEMBER_NAME(   \
       InterfaceName, KeyName);  // NOLINT(readability/naming/underscores)
   V8_PRIVATE_PROPERTY_FOR_EACH(V8_PRIVATE_PROPERTY_DECLARE_MEMBER)
 #undef V8_PRIVATE_PROPERTY_DECLARE_MEMBER
 };
 
 }  // namespace blink
 
 #endif  // V8PrivateProperty_h