[#4] Pass gfx structs by const ref (gfx::PointF)

cc/quads/texture_draw_quad.cc

Index: cc/quads/texture_draw_quad.cc
diff --git a/cc/quads/texture_draw_quad.cc b/cc/quads/texture_draw_quad.cc
index 8a713d450ee7d9a3281ac4b128ba845975613997..31fd07add03f65ac5059bfe396098fcacfe864d0 100644
--- a/cc/quads/texture_draw_quad.cc
+++ b/cc/quads/texture_draw_quad.cc
@@ -30,8 +30,8 @@ void TextureDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
                              const gfx::Rect& rect,
                              const gfx::Rect& opaque_rect,
                              unsigned resource_id, bool premultiplied_alpha,
-                             gfx::PointF uv_top_left,
-                             gfx::PointF uv_bottom_right,
+                             const gfx::PointF& uv_top_left,
+                             const gfx::PointF& uv_bottom_right,
                              SkColor background_color,
                              const float vertex_opacity[4],
                              bool flipped) {
@@ -57,8 +57,8 @@ void TextureDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
                              const gfx::Rect& opaque_rect,
                              const gfx::Rect& visible_rect, bool needs_blending,
                              unsigned resource_id, bool premultiplied_alpha,
-                             gfx::PointF uv_top_left,
-                             gfx::PointF uv_bottom_right,
+                             const gfx::PointF& uv_top_left,
+                             const gfx::PointF& uv_bottom_right,
                              SkColor background_color,
                              const float vertex_opacity[4],
                              bool flipped) {