Modifications to GrPatherRenderer(Chain) interfaces to support clip mask manager.

R=robertphillips@google.com
Review URL: https://codereview.appspot.com/6904069

git-svn-id: http://skia.googlecode.com/svn/trunk@6741 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrSoftwarePathRenderer.cpp b/src/gpu/GrSoftwarePathRenderer.cpp
index a521eef..36a4156 100644
--- a/src/gpu/GrSoftwarePathRenderer.cpp
+++ b/src/gpu/GrSoftwarePathRenderer.cpp
@@ -28,6 +28,13 @@
     return true;
 }
 
+GrPathRenderer::StencilSupport GrSoftwarePathRenderer::onGetStencilSupport(
+                                                                        const SkPath&,
+                                                                        const SkStroke&,
+                                                                        const GrDrawTarget*) const {
+    return GrPathRenderer::kNoSupport_StencilSupport;
+}
+
 namespace {
 
 ////////////////////////////////////////////////////////////////////////////////