Make GrGpuResources register with GrResourceCache2 after fully constructed.

src/gpu/gl/GrGLPath.cpp

Index: src/gpu/gl/GrGLPath.cpp
diff --git a/src/gpu/gl/GrGLPath.cpp b/src/gpu/gl/GrGLPath.cpp
index 8c76b5922a5917e2e3c31544c490c3caeb1fba96..972a7af39bd324195ca7f785c83e8ac673d56515 100644
--- a/src/gpu/gl/GrGLPath.cpp
+++ b/src/gpu/gl/GrGLPath.cpp
@@ -136,6 +136,7 @@ GrGLPath::GrGLPath(GrGpuGL* gpu, const SkPath& path, const SkStrokeRec& stroke)
         // FIXME: try to account for stroking, without rasterizing the stroke.
         fBounds.outset(stroke.getWidth(), stroke.getWidth());
     }
+    this->registerWithCache();
 }
 
 GrGLPath::~GrGLPath() {