Adding checks for V8 functions returning Maybe<bool>

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

 // Copyright 2014 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/ScriptPromisePropertyBase.h"
 
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8HiddenValue.h"
@@ skipping 97 matching lines @@
 }
 
 void ScriptPromisePropertyBase::resolveOrRejectInternal(
     v8::Local<v8::Promise::Resolver> resolver) {
   v8::Local<v8::Context> context = resolver->CreationContext();
   switch (m_state) {
     case Pending:
       ASSERT_NOT_REACHED();
       break;
     case Resolved:
-      resolver->Resolve(context, resolvedValue(m_isolate, context->Global()));
+      resolver->Resolve(context, resolvedValue(
+           m_isolate, context->Global())).ToChecked();
       break;
     case Rejected:
-      resolver->Reject(context, rejectedValue(m_isolate, context->Global()));
+      resolver->Reject(context, rejectedValue(
+          m_isolate, context->Global())).ToChecked();
       break;
   }
 }
 
 v8::Local<v8::Object> ScriptPromisePropertyBase::ensureHolderWrapper(
     ScriptState* scriptState) {
   v8::Local<v8::Context> context = scriptState->context();
   size_t i = 0;
   while (i < m_wrappers.size()) {
     const std::unique_ptr<ScopedPersistent<v8::Object>>& persistent =
@@ skipping 74 matching lines @@
   }
   ASSERT_NOT_REACHED();
   return v8::Local<v8::String>();
 }
 
 DEFINE_TRACE(ScriptPromisePropertyBase) {
   ContextClient::trace(visitor);
 }
 
 }  // namespace blink