cc: Support anti-aliasing for solid color layers.

cc/solid_color_draw_quad.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/solid_color_draw_quad.h"
 
 #include "base/logging.h"
 
 namespace cc {
 
-SolidColorDrawQuad::SolidColorDrawQuad() : color(0) {}
+SolidColorDrawQuad::SolidColorDrawQuad() : color(0) {
+}
 
 scoped_ptr<SolidColorDrawQuad> SolidColorDrawQuad::Create() {
   return make_scoped_ptr(new SolidColorDrawQuad);
 }
 
 void SolidColorDrawQuad::SetNew(const SharedQuadState* shared_quad_state,
                                 gfx::Rect rect,
+                                AntiAliasing anti_aliasing,
                                 SkColor color) {
   gfx::Rect opaque_rect = SkColorGetA(color) == 255 ? rect : gfx::Rect();
   gfx::Rect visible_rect = rect;
   bool needs_blending = false;
   DrawQuad::SetAll(shared_quad_state, DrawQuad::SOLID_COLOR, rect, opaque_rect,
-                   visible_rect, needs_blending);
+                   visible_rect, needs_blending, anti_aliasing);
   this->color = color;
+
+  // Override needs_blending after initializing the quad.
+  this->needs_blending = IsAntialiased();
 }
 
 void SolidColorDrawQuad::SetAll(const SharedQuadState* shared_quad_state,
                                 gfx::Rect rect,
                                 gfx::Rect opaque_rect,
                                 gfx::Rect visible_rect,
                                 bool needs_blending,
+                                AntiAliasing anti_aliasing,
                                 SkColor color) {
   DrawQuad::SetAll(shared_quad_state, DrawQuad::SOLID_COLOR, rect, opaque_rect,
-                   visible_rect, needs_blending);
+                   visible_rect, needs_blending, anti_aliasing);
   this->color = color;
 }
 
 const SolidColorDrawQuad* SolidColorDrawQuad::MaterialCast(
     const DrawQuad* quad) {
   DCHECK(quad->material == DrawQuad::SOLID_COLOR);
   return static_cast<const SolidColorDrawQuad*>(quad);
 }
 
 }  // namespacec cc