Wrap NV_path_rendering API with GrGLPathRendering

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 2df04e3057ef0ba9d1ce66c1910010883c563c03..5e89cb5d87871941bcc40d6b59a5e9b183547607 100644
--- a/src/gpu/gl/GrGLPathRange.cpp
+++ b/src/gpu/gl/GrGLPathRange.cpp
@@ -8,17 +8,13 @@
 
 #include "GrGLPathRange.h"
 #include "GrGLPath.h"
+#include "GrGLPathRendering.h"
 #include "GrGpuGL.h"
 
-#define GPUGL static_cast<GrGpuGL*>(this->getGpu())
-
-#define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
-#define GL_CALL_RET(R, X) GR_GL_CALL_RET(GPUGL->glInterface(), R, X)
-
-GrGLPathRange::GrGLPathRange(GrGpu* gpu, size_t size, const SkStrokeRec& stroke)
+GrGLPathRange::GrGLPathRange(GrGpuGL* gpu, size_t size, const SkStrokeRec& stroke)
     : INHERITED(gpu, size, stroke),
+      fBasePathID(gpu->pathRendering()->genPaths(fSize)),
       fNumDefinedPaths(0) {
-    GL_CALL_RET(fBasePathID, GenPaths(fSize));
 }
 
 GrGLPathRange::~GrGLPathRange() {
@@ -31,15 +27,10 @@ void GrGLPathRange::initAt(size_t index, const SkPath& skPath) {
         return;
     }
 
-#ifdef SK_DEBUG
     // Make sure the path at this index hasn't been initted already.
-    GrGLboolean hasPathAtIndex;
-    GL_CALL_RET(hasPathAtIndex, IsPath(fBasePathID + index));
-    SkASSERT(GR_GL_FALSE == hasPathAtIndex);
-#endif
-
-    GrGLPath::InitPathObject(gpu->glInterface(), fBasePathID + index, skPath, fStroke);
+    SkASSERT(GR_GL_FALSE == gpu->pathRendering()->isPath(fBasePathID + index));
 
+    GrGLPath::InitPathObject(gpu, fBasePathID + index, skPath, fStroke);
     ++fNumDefinedPaths;
     this->didChangeGpuMemorySize();
 }
@@ -48,7 +39,7 @@ void GrGLPathRange::onRelease() {
     SkASSERT(NULL != this->getGpu());
 
     if (0 != fBasePathID && !this->isWrapped()) {
-        GL_CALL(DeletePaths(fBasePathID, fSize));
+        static_cast<GrGpuGL*>(this->getGpu())->pathRendering()->deletePaths(fBasePathID, fSize);
         fBasePathID = 0;
     }