cc: Support anti-aliasing for solid color layers.

cc/layer_tree_host_impl.cc

 // Copyright 2011 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/layer_tree_host_impl.h"
 
 #include <algorithm>
 
 #include "base/basictypes.h"
 #include "base/debug/trace_event.h"
@@ skipping 495 matching lines @@
     gfx::Transform transformToLayerSpace(gfx::Transform::kSkipInitialization);
     bool didInvert = rootLayer->screenSpaceTransform().GetInverse(&transformToLayerSpace);
     DCHECK(didInvert);
     for (Region::Iterator fillRects(fillRegion); fillRects.has_rect(); fillRects.next()) {
         // The root layer transform is composed of translations and scales only,
         // no perspective, so mapping is sufficient (as opposed to projecting).
         gfx::Rect layerRect = MathUtil::mapClippedRect(transformToLayerSpace, fillRects.rect());
         // Skip the quad culler and just append the quads directly to avoid
         // occlusion checks.
         scoped_ptr<SolidColorDrawQuad> quad = SolidColorDrawQuad::Create();
-        quad->SetNew(sharedQuadState, layerRect, screenBackgroundColor);
+        quad->SetNew(sharedQuadState, layerRect, DrawQuad::AntiAliasing(), screenBackgroundColor);
         quadCuller.append(quad.PassAs<DrawQuad>(), appendQuadsData);
     }
 }
 
 bool LayerTreeHostImpl::calculateRenderPasses(FrameData& frame)
 {
     DCHECK(frame.renderPasses.isEmpty());
 
     if (!canDraw() || !rootLayer())
       return false;
@@ skipping 1176 matching lines @@
     ScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     double monotonicTime = (time - base::TimeTicks()).InSecondsF();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], time);
 }
 
 }  // namespace cc