Simplify GrGLPathRendering interface

src/gpu/gl/GrGLPathRange.cpp

Index: src/gpu/gl/GrGLPathRange.cpp
diff --git a/src/gpu/gl/GrGLPathRange.cpp b/src/gpu/gl/GrGLPathRange.cpp
index 9aaf9db26bd29d5884974a9e5c47eabcafee2bb5..5295207710e234ccc0cfca2b9a121e18cb9b3e0b 100644
--- a/src/gpu/gl/GrGLPathRange.cpp
+++ b/src/gpu/gl/GrGLPathRange.cpp
@@ -28,7 +28,10 @@ void GrGLPathRange::initAt(size_t index, const SkPath& skPath) {
     }
 
     // Make sure the path at this index hasn't been initted already.
-    SkASSERT(GR_GL_FALSE == gpu->glPathRendering()->isPath(fBasePathID + index));
+    SkDEBUGCODE(
+        GrGLboolean isPath;
+        GR_GL_CALL_RET(gpu->glInterface(), isPath, IsPath(fBasePathID + index)));
+    SkASSERT(GR_GL_FALSE == isPath);
 
     GrGLPath::InitPathObject(gpu, fBasePathID + index, skPath, fStroke);
     ++fNumDefinedPaths;