Simplify path allocation, clean up resources correctly

src/gpu/gl/GrGLGpu.cpp

Index: src/gpu/gl/GrGLGpu.cpp
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index 972049aa56b36327e24671d7c1d19e3138228035..9b03a2e23dd504f4dfeab4435ec94d323a6500b9 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -227,6 +227,10 @@ GrGLGpu::GrGLGpu(GrGLContext* ctx, GrContext* context)
 }
 
 GrGLGpu::~GrGLGpu() {
+    // Delete the path rendering explicitly, since it will need working gpu object to release the
+    // resources the object itself holds.
+    fPathRendering.reset();
+
     if (0 != fHWProgramID) {
         // detach the current program so there is no confusion on OpenGL's part
         // that we want it to be deleted