Remove outdated FIXME

Source/core/inspector/InspectorTraceEvents.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 "config.h"
 #include "core/inspector/InspectorTraceEvents.h"
 
 #include "bindings/core/v8/ScriptCallStackFactory.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "core/animation/Animation.h"
@@ skipping 351 matching lines @@
     ASSERT(layoutObject);
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("frame", toHexString(layoutObject->frame()));
     setGeneratingNodeInfo(value.get(), layoutObject, "nodeId", "nodeName");
     value->setString("reason", reason);
     if (RefPtrWillBeRawPtr<ScriptCallStack> stackTrace = createScriptCallStack(maxInvalidationTrackingCallstackSize, true))
         stackTrace->toTracedValue(value.get(), "stackTrace");
     return value.release();
 }
 
-PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorPaintInvalidationTrackingEvent::data(const LayoutObject* layoutObject, const LayoutObject* paintContainer)
+PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorPaintInvalidationTrackingEvent::data(const LayoutObject* layoutObject, const LayoutObject& paintContainer)
 {
     ASSERT(layoutObject);
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("frame", toHexString(layoutObject->frame()));
-    setGeneratingNodeInfo(value.get(), paintContainer, "paintId");
+    setGeneratingNodeInfo(value.get(), &paintContainer, "paintId");
     setGeneratingNodeInfo(value.get(), layoutObject, "nodeId", "nodeName");
     return value.release();
 }
 
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorScrollInvalidationTrackingEvent::data(const LayoutObject& layoutObject)
 {
     static const char ScrollInvalidationReason[] = "Scroll with viewport-constrained element";
 
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("frame", toHexString(layoutObject.frame()));
@@ skipping 364 matching lines @@
 }
 
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorAnimationStateEvent::data(const Animation& player)
 {
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("state", player.playState());
     return value.release();
 }
 
 }