Remove V8Call and replace with v8::Maybe<T>::To and v8::MaybeLocal<T>::ToLocal.

third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinition.cpp

 // 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.
 
 #include "bindings/core/v8/ScriptCustomElementDefinition.h"
 
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8BindingForCore.h"
 #include "bindings/core/v8/V8BindingMacros.h"
 #include "bindings/core/v8/V8CustomElementRegistry.h"
@@ skipping 256 matching lines @@
 
   return true;
 }
 
 Element* ScriptCustomElementDefinition::CallConstructor() {
   v8::Isolate* isolate = script_state_->GetIsolate();
   DCHECK(ScriptState::Current(isolate) == script_state_);
   ExecutionContext* execution_context =
       ExecutionContext::From(script_state_.Get());
   v8::Local<v8::Value> result;
-  if (!V8Call(V8ScriptRunner::CallAsConstructor(isolate, Constructor(),
-                                                execution_context, 0, nullptr),
-              result)) {
+  if (!V8ScriptRunner::CallAsConstructor(isolate, Constructor(),
+                                         execution_context, 0, nullptr)
+           .ToLocal(&result)) {
     return nullptr;
   }
   return V8Element::toImplWithTypeCheck(isolate, result);
 }
 
 v8::Local<v8::Object> ScriptCustomElementDefinition::Constructor() const {
   DCHECK(!constructor_.IsEmpty());
   return constructor_.NewLocal(script_state_->GetIsolate());
 }
 
@@ skipping 78 matching lines @@
   v8::Local<v8::Value> argv[] = {
       V8String(isolate, name.LocalName()), V8StringOrNull(isolate, old_value),
       V8StringOrNull(isolate, new_value),
       V8StringOrNull(isolate, name.NamespaceURI()),
   };
   RunCallback(attribute_changed_callback_.NewLocal(isolate), element,
               WTF_ARRAY_LENGTH(argv), argv);
 }
 
 }  // namespace blink