IDL: Drop redundant null check for string and wrapper type attributes

Source/bindings/tests/results/V8TestObject.cpp

Index: Source/bindings/tests/results/V8TestObject.cpp
diff --git a/Source/bindings/tests/results/V8TestObject.cpp b/Source/bindings/tests/results/V8TestObject.cpp
index 2baf6d646b3635be31434abfc21a8d577df3351c..ba66181195013b7ca85f13426abd2a9a256407a1 100644
--- a/Source/bindings/tests/results/V8TestObject.cpp
+++ b/Source/bindings/tests/results/V8TestObject.cpp
@@ -1372,12 +1372,7 @@ static void readonlyEventTargetOrNullAttributeAttributeGetter(const v8::Property
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    RefPtrWillBeRawPtr<EventTarget> cppValue(impl->readonlyEventTargetOrNullAttribute());
-    if (!cppValue) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    v8SetReturnValueFast(info, WTF::getPtr(cppValue.release()), impl);
+    v8SetReturnValueFast(info, WTF::getPtr(impl->readonlyEventTargetOrNullAttribute()), impl);
 }
 
 static void readonlyEventTargetOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
@@ -1520,12 +1515,7 @@ static void stringOrNullAttributeAttributeGetter(const v8::PropertyCallbackInfo<
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    String cppValue(impl->stringOrNullAttribute());
-    if (!cppValue) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    v8SetReturnValueString(info, cppValue, info.GetIsolate());
+    v8SetReturnValueStringOrNull(info, impl->stringOrNullAttribute(), info.GetIsolate());
 }
 
 static void stringOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
@@ -1590,12 +1580,7 @@ static void testInterfaceOrNullAttributeAttributeGetter(const v8::PropertyCallba
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    RefPtr<TestInterfaceImplementation> cppValue(impl->testInterfaceOrNullAttribute());
-    if (!cppValue) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    v8SetReturnValueFast(info, WTF::getPtr(cppValue.release()), impl);
+    v8SetReturnValueFast(info, WTF::getPtr(impl->testInterfaceOrNullAttribute()), impl);
 }
 
 static void testInterfaceOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
@@ -4441,12 +4426,7 @@ static void typeCheckingInterfaceTestInterfaceOrNullAttributeAttributeGetter(con
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    RefPtr<TestInterfaceImplementation> cppValue(impl->typeCheckingInterfaceTestInterfaceOrNullAttribute());
-    if (!cppValue) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    v8SetReturnValueFast(info, WTF::getPtr(cppValue.release()), impl);
+    v8SetReturnValueFast(info, WTF::getPtr(impl->typeCheckingInterfaceTestInterfaceOrNullAttribute()), impl);
 }
 
 static void typeCheckingInterfaceTestInterfaceOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
@@ -4710,12 +4690,7 @@ static void testInterfaceGarbageCollectedOrNullAttributeAttributeGetter(const v8
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    RawPtr<TestInterfaceGarbageCollected> cppValue(impl->testInterfaceGarbageCollectedOrNullAttribute());
-    if (!cppValue) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    v8SetReturnValueFast(info, WTF::getPtr(cppValue.release()), impl);
+    v8SetReturnValueFast(info, WTF::getPtr(impl->testInterfaceGarbageCollectedOrNullAttribute()), impl);
 }
 
 static void testInterfaceGarbageCollectedOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
@@ -4773,12 +4748,7 @@ static void testInterfaceWillBeGarbageCollectedOrNullAttributeAttributeGetter(co
 {
     v8::Handle<v8::Object> holder = info.Holder();
     TestObject* impl = V8TestObject::toNative(holder);
-    RefPtrWillBeRawPtr<TestInterfaceWillBeGarbageCollected> cppValue(impl->testInterfaceWillBeGarbageCollectedOrNullAttribute());
-    if (!cppValue) {
-        v8SetReturnValueNull(info);
-        return;
-    }
-    v8SetReturnValueFast(info, WTF::getPtr(cppValue.release()), impl);
+    v8SetReturnValueFast(info, WTF::getPtr(impl->testInterfaceWillBeGarbageCollectedOrNullAttribute()), impl);
 }
 
 static void testInterfaceWillBeGarbageCollectedOrNullAttributeAttributeGetterCallback(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)