Move geometric types to a separate, more lightweight target.

ui/gfx/geometry/point3_f.h

Index: ui/gfx/geometry/point3_f.h
diff --git a/ui/gfx/point3_f.h b/ui/gfx/geometry/point3_f.h
similarity index 94%
copy from ui/gfx/point3_f.h
copy to ui/gfx/geometry/point3_f.h
index 485f65581365b5a6f802729a1368120e09c4f9d7..45bae6e8d328638da2c3bfac693f5855110bbf28 100644
--- a/ui/gfx/point3_f.h
+++ b/ui/gfx/geometry/point3_f.h
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_GFX_POINT3_F_H_
-#define UI_GFX_POINT3_F_H_
+#ifndef UI_GFX_GEOMETRY_POINT3_F_H_
+#define UI_GFX_GEOMETRY_POINT3_F_H_
 
 #include <string>
 
+#include "ui/gfx/geometry/point_f.h"
+#include "ui/gfx/geometry/vector3d_f.h"
 #include "ui/gfx/gfx_export.h"
-#include "ui/gfx/point_f.h"
-#include "ui/gfx/vector3d_f.h"
 
 namespace gfx {
 
@@ -117,4 +117,4 @@ inline Point3F ScalePoint(const Point3F& p, float scale) {
 
 }  // namespace gfx
 
-#endif  // UI_GFX_POINT3_F_H_
+#endif  // UI_GFX_GEOMETRY_POINT3_F_H_