Hide GrGpuResourceRef from prying eyes

Change-Id: I5535b8cc8e82ed4b6fe847b96b417531b4bae348
Reviewed-on: https://skia-review.googlesource.com/19967
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

gn/gpu.gni

@@ -16,7 +16,6 @@ skia_gpu_sources = [
   "$_include/gpu/GrContextOptions.h",
   "$_include/gpu/GrContext.h",
   "$_include/gpu/GrGpuResource.h",
-  "$_include/gpu/GrGpuResourceRef.h",
   "$_include/gpu/GrRenderTarget.h",
   "$_include/gpu/GrResourceKey.h",
   "$_include/gpu/GrShaderCaps.h",
@@ -93,6 +92,7 @@ skia_gpu_sources = [
   "$_src/gpu/GrGpuCommandBuffer.h",
   "$_src/gpu/GrGpuResourcePriv.h",
   "$_src/gpu/GrGpuResource.cpp",
+  "$_src/gpu/GrGpuResourceRef.h",
   "$_src/gpu/GrGpuFactory.cpp",
   "$_src/gpu/GrGpuFactory.h",
   "$_src/gpu/GrImageTextureMaker.cpp",

src/gpu/GrMesh.h

@@ -9,7 +9,6 @@
 #define GrMesh_DEFINED
 
 #include "GrBuffer.h"
-#include "GrGpuResourceRef.h"
 
 class GrPrimitiveProcessor;
 

src/gpu/GrOpList.h

@@ -9,7 +9,6 @@
 #define GrOpList_DEFINED
 
 #include "GrGpuResourceRef.h"
-
 #include "SkRefCnt.h"
 #include "SkTDArray.h"
 

src/gpu/GrPipelineBuilder.h

@@ -8,7 +8,6 @@
 #ifndef GrPipelineBuilder_DEFINED
 #define GrPipelineBuilder_DEFINED
 
-#include "GrGpuResourceRef.h"
 #include "GrPipeline.h"
 #include "GrProcessorSet.h"
 #include "GrUserStencilSettings.h"

src/gpu/GrProgramElement.h

@@ -11,8 +11,6 @@
 #include "../private/SkTArray.h"
 #include "SkRefCnt.h"
 
-class GrGpuResourceRef;
-
 /**
  * Note: We are converting GrProcessor from ref counting to a single owner model using move
  * semantics. This class will be removed.