Remove GrGpu.h from GrResourceProvider.h

Noticed this while cleaning up GrResourceProvider.h's usage. It seems like a powerful header to just be splashing around.

Change-Id: I686fea61354a7e3c1c759627ffe4a560f7945f83
Reviewed-on: https://skia-review.googlesource.com/20040
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
diff --git a/gn/gpu.gni b/gn/gpu.gni
index 9dee9f5..fab5d97 100644
--- a/gn/gpu.gni
+++ b/gn/gpu.gni
@@ -282,6 +282,7 @@
   "$_src/gpu/ops/GrSmallPathRenderer.h",
   "$_src/gpu/ops/GrStencilAndCoverPathRenderer.cpp",
   "$_src/gpu/ops/GrStencilAndCoverPathRenderer.h",
+  "$_src/gpu/ops/GrStencilPathOp.cpp",
   "$_src/gpu/ops/GrStencilPathOp.h",
   "$_src/gpu/ops/GrTessellatingPathRenderer.cpp",
   "$_src/gpu/ops/GrTessellatingPathRenderer.h",