Add a GrPathRange class

src/gpu/gl/GrGLPath.h

Index: src/gpu/gl/GrGLPath.h
diff --git a/src/gpu/gl/GrGLPath.h b/src/gpu/gl/GrGLPath.h
index 3409547b2b06ac4d154fc8cdeb7017ffb6a96de3..4831b7250fe0e1fe85be866868171ad2f21b4913 100644
--- a/src/gpu/gl/GrGLPath.h
+++ b/src/gpu/gl/GrGLPath.h
@@ -13,6 +13,7 @@
 #include "gl/GrGLFunctions.h"
 
 class GrGpuGL;
+struct GrGLInterface;
 
 /**
  * Currently this represents a path built using GL_NV_path_rendering. If we
@@ -22,6 +23,11 @@ class GrGpuGL;
 
 class GrGLPath : public GrPath {
 public:
+    static void InitPathObject(const GrGLInterface*,
+                               GrGLuint pathID,
+                               const SkPath&,
+                               const SkStrokeRec&);
+
     GrGLPath(GrGpuGL* gpu, const SkPath& path, const SkStrokeRec& stroke);
     virtual ~GrGLPath();
     GrGLuint pathID() const { return fPathID; }