[cc] Rename all cc/ filenames to Chromium style

cc/CCLayerSorter.h

-// Copyright 2011 The Chromium Authors. All rights reserved.
+// Copyright 2012 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 CCLayerSorter_h
-#define CCLayerSorter_h
-
-#include "base/basictypes.h"
-#include "CCLayerImpl.h"
-#include "FloatPoint3D.h"
-#include "FloatQuad.h"
-#include "FloatRect.h"
-#include <vector>
-#include <wtf/HashMap.h>
-#include <wtf/Vector.h>
-
-namespace WebKit {
-class WebTransformationMatrix;
-}
-
-namespace cc {
-
-class CCLayerSorter {
-public:
-    CCLayerSorter();
-    ~CCLayerSorter();
-
-    typedef std::vector<CCLayerImpl*> LayerList;
-
-    void sort(LayerList::iterator first, LayerList::iterator last);
-
-    // Holds various useful properties derived from a layer's 3D outline.
-    struct LayerShape {
-        LayerShape();
-        LayerShape(float width, float height, const WebKit::WebTransformationMatrix& drawTransform);
-
-        float layerZFromProjectedPoint(const FloatPoint&) const;
-
-        FloatPoint3D layerNormal;
-        FloatPoint3D transformOrigin;
-        FloatQuad projectedQuad;
-        FloatRect projectedBounds;
-    };
-
-    enum ABCompareResult {
-        ABeforeB,
-        BBeforeA,
-        None
-    };
-
-    static ABCompareResult checkOverlap(LayerShape*, LayerShape*, float zThreshold, float& weight);
-
-private:
-    struct GraphEdge;
-
-    struct GraphNode {
-        explicit GraphNode(CCLayerImpl* cclayer);
-        ~GraphNode();
-
-        CCLayerImpl* layer;
-        LayerShape shape;
-        Vector<GraphEdge*> incoming;
-        Vector<GraphEdge*> outgoing;
-        float incomingEdgeWeight;
-    };
-
-    struct GraphEdge {
-        GraphEdge(GraphNode* fromNode, GraphNode* toNode, float weight) : from(fromNode), to(toNode), weight(weight) { };
-
-        GraphNode* from;
-        GraphNode* to;
-        float weight;
-    };
-
-    typedef Vector<GraphNode> NodeList;
-    typedef Vector<GraphEdge> EdgeList;
-    NodeList m_nodes;
-    EdgeList m_edges;
-    float m_zRange;
-
-    typedef HashMap<GraphEdge*, GraphEdge*> EdgeMap;
-    EdgeMap m_activeEdges;
-
-    void createGraphNodes(LayerList::iterator first, LayerList::iterator last);
-    void createGraphEdges();
-    void removeEdgeFromList(GraphEdge*, Vector<GraphEdge*>&);
-
-    DISALLOW_COPY_AND_ASSIGN(CCLayerSorter);
-};
-
-}
-#endif
+// Temporary forwarding header
+#include "cc/layer_sorter.h"