Clean up GrResourceProvider usage

The only substantive changes are the removal of GrProxy instantiation in:

SkGpuBlurUtils::GaussianBlur
GrSimpleTextureEffect::Make*

Change-Id: I10970609693bd6ff5b3a3c21b41d82642bb277bc
Reviewed-on: https://skia-review.googlesource.com/19965
Reviewed-by: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/instanced/InstancedRendering.h b/src/gpu/instanced/InstancedRendering.h
index d0df132..e349f63 100644
--- a/src/gpu/instanced/InstancedRendering.h
+++ b/src/gpu/instanced/InstancedRendering.h
@@ -46,7 +46,7 @@
  */
 class InstancedRendering : public SkNoncopyable {
 public:
-    virtual ~InstancedRendering() { SkASSERT(State::kRecordingDraws == fState); }
+    virtual ~InstancedRendering();
 
     GrGpu* gpu() const { return fGpu.get(); }