Make DrawQuad constructors public, rm DQ::Create() function

cc/quads/solid_color_draw_quad.cc

Index: cc/quads/solid_color_draw_quad.cc
diff --git a/cc/quads/solid_color_draw_quad.cc b/cc/quads/solid_color_draw_quad.cc
index 7c0b554dcc8f307e149900e0c62bc346a4457900..333ee17872eaae801a4780acde55e0c594b7fd0e 100644
--- a/cc/quads/solid_color_draw_quad.cc
+++ b/cc/quads/solid_color_draw_quad.cc
@@ -12,10 +12,6 @@ namespace cc {
 SolidColorDrawQuad::SolidColorDrawQuad()
     : color(0), force_anti_aliasing_off(false) {}
 
-scoped_ptr<SolidColorDrawQuad> SolidColorDrawQuad::Create() {
-  return make_scoped_ptr(new SolidColorDrawQuad);
-}
-
 void SolidColorDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
                                 const gfx::Rect& rect,
                                 const gfx::Rect& visible_rect,