Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/bindings/v8/ScriptValue.cpp

 /*
  * Copyright (C) 2008, 2009, 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 50 matching lines @@
     v8::Handle<v8::String> string = v8Value()->ToString();
     if (block.HasCaught())
         return String();
     return v8StringToWebCoreString<String>(string, DoNotExternalize);
 }
 
 static PassRefPtr<JSONValue> v8ToJSONValue(v8::Handle<v8::Value> value, int maxDepth, v8::Isolate* isolate)
 {
     if (value.IsEmpty()) {
         ASSERT_NOT_REACHED();
-        return 0;
+        return nullptr;
     }
 
     if (!maxDepth)
-        return 0;
+        return nullptr;
     maxDepth--;
 
     if (value->IsNull() || value->IsUndefined())
         return JSONValue::null();
     if (value->IsBoolean())
         return JSONBasicValue::create(value->BooleanValue());
     if (value->IsNumber())
         return JSONBasicValue::create(value->NumberValue());
     if (value->IsString())
         return JSONString::create(toCoreString(value.As<v8::String>()));
     if (value->IsArray()) {
         v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(value);
         RefPtr<JSONArray> inspectorArray = JSONArray::create();
         uint32_t length = array->Length();
         for (uint32_t i = 0; i < length; i++) {
             v8::Local<v8::Value> value = array->Get(v8::Int32::New(isolate, i));
             RefPtr<JSONValue> element = v8ToJSONValue(value, maxDepth, isolate);
             if (!element)
-                return 0;
+                return nullptr;
             inspectorArray->pushValue(element);
         }
         return inspectorArray;
     }
     if (value->IsObject()) {
         RefPtr<JSONObject> jsonObject = JSONObject::create();
         v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
         v8::Local<v8::Array> propertyNames = object->GetPropertyNames();
         uint32_t length = propertyNames->Length();
         for (uint32_t i = 0; i < length; i++) {
             v8::Local<v8::Value> name = propertyNames->Get(v8::Int32::New(isolate, i));
             // FIXME(yurys): v8::Object should support GetOwnPropertyNames
             if (name->IsString() && !object->HasRealNamedProperty(v8::Handle<v8::String>::Cast(name)))
                 continue;
             RefPtr<JSONValue> propertyValue = v8ToJSONValue(object->Get(name), maxDepth, isolate);
             if (!propertyValue)
-                return 0;
-            V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithNullCheck>, nameString, name, 0);
+                return nullptr;
+            V8TRYCATCH_FOR_V8STRINGRESOURCE_RETURN(V8StringResource<WithNullCheck>, nameString, name, nullptr);
             jsonObject->setValue(nameString, propertyValue);
         }
         return jsonObject;
     }
     ASSERT_NOT_REACHED();
-    return 0;
+    return nullptr;
 }
 
 PassRefPtr<JSONValue> ScriptValue::toJSONValue(ScriptState* scriptState) const
 {
     v8::HandleScope handleScope(scriptState->isolate());
     // v8::Object::GetPropertyNames() expects current context to be not null.
     v8::Context::Scope contextScope(scriptState->context());
     return v8ToJSONValue(v8Value(), JSONValue::maxDepth, scriptState->isolate());
 }
 
 } // namespace WebCore