Moving platform tracing things into platform/tracing.

third_party/WebKit/Source/core/animation/CustomCompositorAnimationManager.cpp

 // Copyright 2016 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 "core/animation/CustomCompositorAnimationManager.h"
 
 #include "core/dom/DOMNodeIds.h"
 #include "core/dom/Element.h"
 #include "core/dom/Node.h"
-#include "platform/TraceEvent.h"
 #include "platform/graphics/CompositorMutation.h"
+#include "platform/tracing/TraceEvent.h"
 
 namespace blink {
 
 CustomCompositorAnimationManager::CustomCompositorAnimationManager() {}
 
 CustomCompositorAnimationManager::~CustomCompositorAnimationManager() {}
 
 void CustomCompositorAnimationManager::applyMutations(
     CompositorMutations* mutations) {
   TRACE_EVENT0("compositor-worker",
                "CustomCompositorAnimationManager::applyMutations");
   for (const auto& entry : mutations->map) {
     int elementId = entry.key;
     const CompositorMutation& mutation = *entry.value;
     Node* node = DOMNodeIds::nodeForId(elementId);
     if (!node || !node->isElementNode())
       continue;
     toElement(node)->updateFromCompositorMutation(mutation);
   }
 }
 
 }  // namespace blink