Prep #1 for making GrDrawState a class

Review URL: http://codereview.appspot.com/5437138/




git-svn-id: http://skia.googlecode.com/svn/trunk@2808 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrPathRenderer.h b/src/gpu/GrPathRenderer.h
index a7205e5..e24b982 100644
--- a/src/gpu/GrPathRenderer.h
+++ b/src/gpu/GrPathRenderer.h
@@ -137,7 +137,7 @@
      *                              use the remaining stages for its path
      *                              filling algorithm.
      */
-    virtual void drawPath(GrDrawTarget::StageBitfield stages) = 0;
+    virtual void drawPath(GrDrawState::StageMask stageMask) = 0;
 
     /**
      * Draws the path to the stencil buffer. Assume the writable stencil bits