cc: Use gfx:: Geometry types for positions, bounds, and related things.

cc/layer_quad.cc

Index: cc/layer_quad.cc
diff --git a/cc/layer_quad.cc b/cc/layer_quad.cc
index 2618a7724e6fb8157a596d23fcc4022715364db3..c5063a75ad47f2f2652818c9817b12695c6d20df 100644
--- a/cc/layer_quad.cc
+++ b/cc/layer_quad.cc
@@ -4,21 +4,22 @@
 
 #include "config.h"
 
+#include "cc/geometry.h"
 #include "cc/layer_quad.h"
 
 #include "base/logging.h"
 
 namespace cc {
 
-LayerQuad::Edge::Edge(const FloatPoint& p, const FloatPoint& q)
+LayerQuad::Edge::Edge(const gfx::PointF& p, const gfx::PointF& q)
 {
     DCHECK(p != q);
 
-    FloatPoint tangent(p.y() - q.y(), q.x() - p.x());
+    gfx::Vector2dF tangent(p.y() - q.y(), q.x() - p.x());
     float cross2 = p.x() * q.y() - q.x() * p.y();
 
     set(tangent.x(), tangent.y(), cross2);
-    scale(1.0f / tangent.length());
+    scale(1.0f / Length(tangent));
 }
 
 LayerQuad::LayerQuad(const FloatQuad& quad)