binding: Retires ExceptionState::throwIfNeeded().

third_party/WebKit/Source/bindings/modules/v8/V8ServiceWorkerMessageEventInternal.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 V8ServiceWorkerMessageEventInternal_h
 #define V8ServiceWorkerMessageEventInternal_h
 
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/core/v8/SerializedScriptValueFactory.h"
 #include "bindings/core/v8/V8PrivateProperty.h"
 
 namespace blink {
 
 class V8ServiceWorkerMessageEventInternal {
 public:
     template <typename EventType, typename DictType>
     static void constructorCustom(const v8::FunctionCallbackInfo<v8::Value>&);
 
     template <typename EventType>
     static void dataAttributeGetterCustom(const v8::FunctionCallbackInfo<v8::Value>&);
 };
 
 template <typename EventType, typename DictType>
 void V8ServiceWorkerMessageEventInternal::constructorCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ConstructionContext, V8TypeOf<EventType>::Type::wrapperTypeInfo.interfaceName, info.Holder(), info.GetIsolate());
     if (UNLIKELY(info.Length() < 1)) {
         setMinimumArityTypeError(exceptionState, 1, info.Length());
-        exceptionState.throwIfNeeded();
         return;
     }
 
     V8StringResource<> type = info[0];
     if (!type.prepare())
         return;
 
     DictType eventInitDict;
     if (!isUndefinedOrNull(info[1])) {
         if (!info[1]->IsObject()) {
             exceptionState.throwTypeError("parameter 2 ('eventInitDict') is not an object.");
-            exceptionState.throwIfNeeded();
             return;
         }
         V8TypeOf<DictType>::Type::toImpl(info.GetIsolate(), info[1], eventInitDict, exceptionState);
-        if (exceptionState.throwIfNeeded())
+        if (exceptionState.hadException())
             return;
     }
 
     EventType* impl = EventType::create(type, eventInitDict);
     v8::Local<v8::Object> wrapper = info.Holder();
     wrapper = impl->associateWithWrapper(info.GetIsolate(), &V8TypeOf<EventType>::Type::wrapperTypeInfo, wrapper);
 
     // TODO(bashi): Workaround for http://crbug.com/529941. We need to store
     // |data| as a private value to avoid cyclic references.
     if (eventInitDict.hasData()) {
@@ skipping 33 matching lines @@
     }
     if (data.IsEmpty())
         data = v8::Null(isolate);
     privateCachedData.set(scriptState->context(), info.Holder(), data);
     v8SetReturnValue(info, data);
 }
 
 } // namespace blink
 
 #endif // V8ServiceWorkerMessageEventInternal_h