WIP: GPU-accelerated trapezoidal path renderer.

src/gpu/GrPathRendererChain.cpp

Index: src/gpu/GrPathRendererChain.cpp
diff --git a/src/gpu/GrPathRendererChain.cpp b/src/gpu/GrPathRendererChain.cpp
index e408762d0aea0b147efc92506a1d21e100aec017..033bf614106f1d69616b40f9d1d976b3bc9bfa94 100644
--- a/src/gpu/GrPathRendererChain.cpp
+++ b/src/gpu/GrPathRendererChain.cpp
@@ -12,6 +12,7 @@
 #include "GrCaps.h"
 #include "GrContext.h"
 #include "GrDefaultPathRenderer.h"
+#include "GrAAConcavePathRenderer.h"
 #include "GrGpu.h"
 
 GrPathRendererChain::GrPathRendererChain(GrContext* context)
@@ -88,6 +89,7 @@ void GrPathRendererChain::init() {
     const GrCaps* caps = fOwner->caps();
     bool twoSided = caps->twoSidedStencilSupport();
     bool wrapOp = caps->stencilWrapOpsSupport();
+    this->addPathRenderer(new GrAAConcavePathRenderer())->unref();
     GrPathRenderer::AddPathRenderers(fOwner, this);
     this->addPathRenderer(new GrDefaultPathRenderer(twoSided, wrapOp))->unref();
     fInit = true;