Switch GrConfigConversionEffect over to taking GrTextureProxies

Change-Id: Ic8be773e210e1ac05dcb9aad6c89dcd63e9e4ba2
Reviewed-on: https://skia-review.googlesource.com/7521
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/gn/gpu.gni b/gn/gpu.gni
index 7df3e4d..3013270 100644
--- a/gn/gpu.gni
+++ b/gn/gpu.gni
@@ -187,6 +187,7 @@
   "$_src/gpu/GrStyle.cpp",
   "$_src/gpu/GrStyle.h",
   "$_src/gpu/GrSurfaceContextPriv.h",
+  "$_src/gpu/GrSurfaceProxyPriv.h",
   "$_src/gpu/GrTessellator.cpp",
   "$_src/gpu/GrTessellator.h",
   "$_src/gpu/GrTextureOpList.cpp",