Fix incorrect compressed internal format enum.

This error was not exposed since compressed formats use different validation
paths.  Fixed for completeness.

BUG=angleproject:1511

Change-Id: I9b44a795b1e43f52555440f776e00bb4b92354ef
Reviewed-on: https://chromium-review.googlesource.com/382653
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
diff --git a/src/libANGLE/formatutils.cpp b/src/libANGLE/formatutils.cpp
index 9a8c1b7..e7c0e77 100644
--- a/src/libANGLE/formatutils.cpp
+++ b/src/libANGLE/formatutils.cpp
@@ -716,7 +716,7 @@
     AddDepthStencilFormat(&map, GL_STENCIL_INDEX8, 0, 8, 0, GL_STENCIL, GL_UNSIGNED_BYTE, GL_UNSIGNED_NORMALIZED, RequireES<2>, RequireES<2>, NeverSupported);
 
     // From GL_ANGLE_lossy_etc_decode
-    map.insert(InternalFormatInfoPair(GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, CompressedFormat(4, 4, 64, 3, GL_ETC1_RGB8_OES, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported)));
+    map.insert(InternalFormatInfoPair(GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, CompressedFormat(4, 4, 64, 3, GL_ETC1_RGB8_LOSSY_DECODE_ANGLE, GL_UNSIGNED_BYTE, false, RequireExt<&Extensions::lossyETCDecode>, NeverSupported, AlwaysSupported)));
 
     // From GL_EXT_texture_norm16
     //                 | Internal format     | R | G | B | A |S | Format         | Type                           | Component type        | SRGB | Texture supported                        | Renderable                               | Filterable    |