cc: Support anti-aliasing for solid color layers.

cc/tiled_layer_impl.cc

Index: cc/tiled_layer_impl.cc
diff --git a/cc/tiled_layer_impl.cc b/cc/tiled_layer_impl.cc
index f76faad5fe5c042524ecd5e97ef2147a1698611e..2eb3dffcdfeed89b47131df8661d2d1e499b3cb9 100644
--- a/cc/tiled_layer_impl.cc
+++ b/cc/tiled_layer_impl.cc
@@ -162,6 +162,16 @@ void TiledLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuad
             if (tileRect.IsEmpty())
                 continue;
 
+            bool clipped = false;
+            gfx::QuadF visibleContentInTargetQuad = MathUtil::mapQuad(drawTransform(), gfx::QuadF(visibleContentRect()), clipped);
+            bool isAxisAlignedInTarget = !clipped && visibleContentInTargetQuad.IsRectilinear();
+            bool useAA = m_tiler->hasBorderTexels() && !isAxisAlignedInTarget;
+
+            bool leftEdgeAA = !i && useAA;
+            bool topEdgeAA = !j && useAA;
+            bool rightEdgeAA = i == m_tiler->numTilesX() - 1 && useAA;
+            bool bottomEdgeAA = j == m_tiler->numTilesY() - 1 && useAA;
+
             if (!tile || !tile->resourceId()) {
                 if (drawCheckerboardForMissingTiles()) {
                     SkColor checkerColor;
@@ -176,7 +186,7 @@ void TiledLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuad
                         appendQuadsData.numMissingTiles++;
                 } else {
                     scoped_ptr<SolidColorDrawQuad> solidColorQuad = SolidColorDrawQuad::Create();
-                    solidColorQuad->SetNew(sharedQuadState, tileRect, backgroundColor());
+                    solidColorQuad->SetNew(sharedQuadState, tileRect, DrawQuad::AntiAliasing(leftEdgeAA, topEdgeAA, rightEdgeAA, bottomEdgeAA), backgroundColor());
                     if (quadSink.append(solidColorQuad.PassAs<DrawQuad>(), appendQuadsData))
                         appendQuadsData.numMissingTiles++;
                 }
@@ -195,18 +205,8 @@ void TiledLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuad
             float tileHeight = static_cast<float>(m_tiler->tileSize().height());
             gfx::Size textureSize(tileWidth, tileHeight);
 
-            bool clipped = false;
-            gfx::QuadF visibleContentInTargetQuad = MathUtil::mapQuad(drawTransform(), gfx::QuadF(visibleContentRect()), clipped);
-            bool isAxisAlignedInTarget = !clipped && visibleContentInTargetQuad.IsRectilinear();
-            bool useAA = m_tiler->hasBorderTexels() && !isAxisAlignedInTarget;
-
-            bool leftEdgeAA = !i && useAA;
-            bool topEdgeAA = !j && useAA;
-            bool rightEdgeAA = i == m_tiler->numTilesX() - 1 && useAA;
-            bool bottomEdgeAA = j == m_tiler->numTilesY() - 1 && useAA;
-
             scoped_ptr<TileDrawQuad> quad = TileDrawQuad::Create();
-            quad->SetNew(sharedQuadState, tileRect, tileOpaqueRect, tile->resourceId(), texCoordRect, textureSize, tile->contentsSwizzled(), leftEdgeAA, topEdgeAA, rightEdgeAA, bottomEdgeAA);
+            quad->SetNew(sharedQuadState, tileRect, tileOpaqueRect, DrawQuad::AntiAliasing(leftEdgeAA, topEdgeAA, rightEdgeAA, bottomEdgeAA), tile->resourceId(), texCoordRect, textureSize, tile->contentsSwizzled());
             quadSink.append(quad.PassAs<DrawQuad>(), appendQuadsData);
         }
     }