Moving platform tracing things into platform/tracing.

third_party/WebKit/Source/core/layout/compositing/CompositingLayerAssigner.cpp

 /*
  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2014 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/layout/compositing/CompositingLayerAssigner.h"
 
 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/compositing/CompositedLayerMapping.h"
 #include "core/page/Page.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
-#include "platform/TraceEvent.h"
+#include "platform/tracing/TraceEvent.h"
 
 namespace blink {
 
 // We will only allow squashing if the bbox-area:squashed-area doesn't exceed
 // the ratio |gSquashingSparsityTolerance|:1.
 static uint64_t gSquashingSparsityTolerance = 6;
 
 CompositingLayerAssigner::CompositingLayerAssigner(
     PaintLayerCompositor* compositor)
     : m_compositor(compositor), m_layersChanged(false) {}
@@ skipping 292 matching lines @@
   while (PaintLayerStackingNode* curNode = iterator.next())
     assignLayersToBackingsInternal(curNode->layer(), squashingState,
                                    layersNeedingPaintInvalidation);
 
   if (squashingState.hasMostRecentMapping &&
       &squashingState.mostRecentMapping->owningLayer() == layer)
     squashingState.haveAssignedBackingsToEntireSquashingLayerSubtree = true;
 }
 
 }  // namespace blink