cc: Replace WebCore::FloatQuad with gfx::QuadF.

cc/layer_quad.h

 // Copyright 2011 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 CCLayerQuad_h
 #define CCLayerQuad_h
 
-#include "FloatQuad.h"
+#include "ui/gfx/point_f.h"
+
+namespace gfx {
+class QuadF;
+}
 
 static const float kAntiAliasingInflateDistance = 0.5f;
 
 namespace cc {
 
 class LayerQuad {
 public:
     class Edge {
     public:
         Edge()
@@ skipping 46 matching lines @@
                 (x() * e.z() - e.x() * z()) / (e.x() * y() - x() * e.y()));
         }
 
     private:
         float m_x;
         float m_y;
         float m_z;
     };
 
     LayerQuad(const Edge& left, const Edge& top, const Edge& right, const Edge& bottom);
-    LayerQuad(const FloatQuad&);
+    LayerQuad(const gfx::QuadF&);
 
     Edge left() const { return m_left; }
     Edge top() const { return m_top; }
     Edge right() const { return m_right; }
     Edge bottom() const { return m_bottom; }
 
     void inflateX(float dx) { m_left.moveZ(dx); m_right.moveZ(dx); }
     void inflateY(float dy) { m_top.moveZ(dy); m_bottom.moveZ(dy); }
     void inflate(float d) { inflateX(d); inflateY(d); }
     void inflateAntiAliasingDistance() { inflate(kAntiAliasingInflateDistance); }
 
-    FloatQuad floatQuad() const;
+    gfx::QuadF ToQuadF() const;
 
     void toFloatArray(float[12]) const;
 
 private:
     Edge m_left;
     Edge m_top;
     Edge m_right;
     Edge m_bottom;
 };
 
 }
 
 #endif