Remove the HasOwnBackingButPaintsIntoAncestor compositing state.

Source/core/inspector/InspectorTraceEvents.h

 // 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.
 
 #ifndef InspectorTraceEvents_h
 #define InspectorTraceEvents_h
 
 #include "core/css/CSSSelector.h"
 #include "platform/EventTracer.h"
 #include "platform/TraceEvent.h"
@@ skipping 168 matching lines @@
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(ExecutionContext*, XMLHttpRequest*);
 };
 
 class InspectorLayerInvalidationTrackingEvent {
 public:
     static const char SquashingLayerGeometryWasUpdated[];
     static const char AddedToSquashingLayer[];
     static const char RemovedFromSquashingLayer[];
     static const char ReflectionLayerChanged[];
     static const char NewCompositedLayer[];
-    static const char AncestorRequiresNewLayer[];
 
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const RenderLayer*, const char* reason);
 };
 #define TRACE_LAYER_INVALIDATION(LAYER, REASON) \
     TRACE_EVENT_INSTANT1( \
         TRACE_DISABLED_BY_DEFAULT("devtools.timeline.invalidationTracking"), \
         "LayerInvalidationTracking", \
         "data", \
         InspectorLayerInvalidationTrackingEvent::data((LAYER), (REASON)))
 
@@ skipping 49 matching lines @@
 
 class InspectorTracingSessionIdForWorkerEvent {
 public:
     static PassRefPtr<TraceEvent::ConvertableToTraceFormat> data(const String& sessionId, WorkerThread*);
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorTraceEvents_h)