Move geometric types to a separate, more lightweight target.

ui/gfx/geometry/vector2d.h

Index: ui/gfx/geometry/vector2d.h
diff --git a/ui/gfx/vector2d.h b/ui/gfx/geometry/vector2d.h
similarity index 94%
copy from ui/gfx/vector2d.h
copy to ui/gfx/geometry/vector2d.h
index 8dd76324d1a90a3c1d6673f41edf9dcd9b255db6..12f29a956d77f19d3a9833b4cd914cb927ba6e36 100644
--- a/ui/gfx/vector2d.h
+++ b/ui/gfx/geometry/vector2d.h
@@ -7,14 +7,14 @@
 // produce a vector, and adding a vector to a point produces the point at the
 // vector's distance from the original point.
 
-#ifndef UI_GFX_VECTOR2D_H_
-#define UI_GFX_VECTOR2D_H_
+#ifndef UI_GFX_GEOMETRY_VECTOR2D_H_
+#define UI_GFX_GEOMETRY_VECTOR2D_H_
 
 #include <string>
 
 #include "base/basictypes.h"
+#include "ui/gfx/geometry/vector2d_f.h"
 #include "ui/gfx/gfx_export.h"
-#include "ui/gfx/vector2d_f.h"
 
 namespace gfx {
 
@@ -88,4 +88,4 @@ inline Vector2d operator-(const Vector2d& lhs, const Vector2d& rhs) {
 
 }  // namespace gfx
 
-#endif // UI_GFX_VECTOR2D_H_
+#endif // UI_GFX_GEOMETRY_VECTOR2D_H_