Keep track of multiple layout roots

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/ScriptGCEvent.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
@@ skipping 252 matching lines @@
         stackTrace->toTracedValue(value.get(), "stackTrace");
     return value.release();
 }
 
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorLayoutEvent::beginData(FrameView* frameView)
 {
     bool isPartial;
     unsigned needsLayoutObjects;
     unsigned totalObjects;
     LocalFrame& frame = frameView->frame();
-    frame.countObjectsNeedingLayout(needsLayoutObjects, totalObjects, isPartial);
+    frame.view()->countObjectsNeedingLayout(needsLayoutObjects, totalObjects, isPartial);
 
     RefPtr<TracedValue> value = TracedValue::create();
     value->setInteger("dirtyObjects", needsLayoutObjects);
     value->setInteger("totalObjects", totalObjects);
     value->setBoolean("partialLayout", isPartial);
     value->setString("frame", toHexString(&frame));
     setCallStack(value.get());
     return value.release();
 }
 
@@ skipping 428 matching lines @@
 }
 
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorAnimationStateEvent::data(const AnimationPlayer& player)
 {
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("state", player.playState());
     return value.release();
 }
 
 }