Add GrAAHairLinePathRenderer

Review URL: http://codereview.appspot.com/4926045



git-svn-id: http://skia.googlecode.com/svn/trunk@2196 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrAddPathRenderers_aahairline.cpp b/gpu/src/GrAddPathRenderers_aahairline.cpp
new file mode 100644
index 0000000..a7df66e
--- /dev/null
+++ b/gpu/src/GrAddPathRenderers_aahairline.cpp
@@ -0,0 +1,20 @@
+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "GrAAHairLinePathRenderer.h"
+
+void GrPathRenderer::AddPathRenderers(GrContext* ctx,
+                                      GrPathRendererChain::UsageFlags flags,
+                                      GrPathRendererChain* chain) {
+    if (!(GrPathRendererChain::kNonAAOnly_UsageFlag & flags)) {
+        if (GrPathRenderer* pr = GrAAHairLinePathRenderer::Create(ctx)) {
+            chain->addPathRenderer(pr)->unref();
+        }
+    }
+}