Initial texture data is never flipped when uploaded.

The first bytes of the data always refer to the pixel accessed by texture coord (0, 0).

Change-Id: I708702d90f35b3bc896a48c3c3fd6a0be73f505a
Reviewed-on: https://skia-review.googlesource.com/112261
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index b1f9c0b..defd063 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1188,6 +1188,7 @@
       sources = [
         "tools/gpu/GrContextFactory.cpp",
         "tools/gpu/GrTest.cpp",
+        "tools/gpu/ProxyUtils.cpp",
         "tools/gpu/TestContext.cpp",
         "tools/gpu/atlastext/GLTestAtlasTextRenderer.cpp",
         "tools/gpu/gl/GLTestContext.cpp",