Move IOType to GrGpuRef and rename that to GrIORef. Template GrPendingIORef on IOType.

src/gpu/GrTextureAccess.cpp

Index: src/gpu/GrTextureAccess.cpp
diff --git a/src/gpu/GrTextureAccess.cpp b/src/gpu/GrTextureAccess.cpp
index 3e543ca75f457be5095f0289dc227eded09ebe8f..662ccd65f83845d57397aad83330e14a576acefb 100644
--- a/src/gpu/GrTextureAccess.cpp
+++ b/src/gpu/GrTextureAccess.cpp
@@ -46,7 +46,7 @@ void GrTextureAccess::reset(GrTexture* texture,
     SkASSERT(strlen(swizzle) >= 1 && strlen(swizzle) <= 4);
 
     fParams = params;
-    fTexture.set(SkRef(texture), GrGpuResourceRef::kRead_IOType);
+    fTexture.set(SkRef(texture), GrIORef::kRead_IOType);
     this->setSwizzle(swizzle);
 }
 
@@ -58,14 +58,14 @@ void GrTextureAccess::reset(GrTexture* texture,
     SkASSERT(strlen(swizzle) >= 1 && strlen(swizzle) <= 4);
 
     fParams.reset(tileXAndY, filterMode);
-    fTexture.set(SkRef(texture), GrGpuResourceRef::kRead_IOType);
+    fTexture.set(SkRef(texture), GrIORef::kRead_IOType);
     this->setSwizzle(swizzle);
 }
 
 void GrTextureAccess::reset(GrTexture* texture,
                             const GrTextureParams& params) {
     SkASSERT(texture);
-    fTexture.set(SkRef(texture), GrGpuResourceRef::kRead_IOType);
+    fTexture.set(SkRef(texture), GrIORef::kRead_IOType);
     fParams = params;
     memcpy(fSwizzle, "rgba", 5);
     fSwizzleMask = kRGBA_GrColorComponentFlags;
@@ -75,7 +75,7 @@ void GrTextureAccess::reset(GrTexture* texture,
                             GrTextureParams::FilterMode filterMode,
                             SkShader::TileMode tileXAndY) {
     SkASSERT(texture);
-    fTexture.set(SkRef(texture), GrGpuResourceRef::kRead_IOType);
+    fTexture.set(SkRef(texture), GrIORef::kRead_IOType);
     fParams.reset(tileXAndY, filterMode);
     memcpy(fSwizzle, "rgba", 5);
     fSwizzleMask = kRGBA_GrColorComponentFlags;