cc: Support anti-aliasing for solid color layers.

cc/checkerboard_draw_quad.cc

Index: cc/checkerboard_draw_quad.cc
diff --git a/cc/checkerboard_draw_quad.cc b/cc/checkerboard_draw_quad.cc
index 9dca587ffef9fae002b81d2b575e474e9627a4fb..68cb1838c2eee13d073f65a0e134d9b066d03fef 100644
--- a/cc/checkerboard_draw_quad.cc
+++ b/cc/checkerboard_draw_quad.cc
@@ -21,7 +21,7 @@ void CheckerboardDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
   gfx::Rect visible_rect = rect;
   bool needs_blending = false;
   DrawQuad::SetAll(shared_quad_state, DrawQuad::CHECKERBOARD, rect, opaque_rect,
-                   visible_rect, needs_blending);
+                   visible_rect, needs_blending, AntiAliasing());
   this->color = color;
 }
 
@@ -32,7 +32,7 @@ void CheckerboardDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
                                   bool needs_blending,
                                   SkColor color) {
   DrawQuad::SetAll(shared_quad_state, DrawQuad::CHECKERBOARD, rect, opaque_rect,
-                   visible_rect, needs_blending);
+                   visible_rect, needs_blending, AntiAliasing());
   this->color = color;
 }