Re-enable the RGB10A2 backbuffer format.

BUG=angleproject:1662

Change-Id: I9bd830a3021a0cfa9010c5e58d3a284cc3eeca26
Reviewed-on: https://chromium-review.googlesource.com/490346
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp b/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
index 3e3931c..abf8713 100644
--- a/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
+++ b/src/libANGLE/renderer/d3d/d3d11/Renderer11.cpp
@@ -970,10 +970,7 @@
         // Additional high bit depth formats added in D3D 10.0
         // https://msdn.microsoft.com/en-us/library/windows/desktop/bb173064.aspx
         colorBufferFormats.push_back(GL_RGBA16F);
-
-        // TODO(geofflang): Re-enable once client code has been updated to filter configs better and
-        // not use RGB10A2 accidentally when requesting RGBA8
-        // colorBufferFormats.push_back(GL_RGB10_A2);
+        colorBufferFormats.push_back(GL_RGB10_A2);
     }
 
     if (!mPresentPathFastEnabled)
diff --git a/src/tests/deqp_support/deqp_egl_test_expectations.txt b/src/tests/deqp_support/deqp_egl_test_expectations.txt
index be78be4..b354022 100644
--- a/src/tests/deqp_support/deqp_egl_test_expectations.txt
+++ b/src/tests/deqp_support/deqp_egl_test_expectations.txt
@@ -53,8 +53,8 @@
 1662 WIN : dEQP-EGL.functional.query_surface.simple.pbuffer.other = FAIL
 1662 WIN : dEQP-EGL.functional.query_surface.set_attribute.window.other = FAIL
 1662 WIN : dEQP-EGL.functional.query_surface.set_attribute.pbuffer.other = FAIL
-1662 WIN : dEQP-EGL.functional.native_color_mapping.native_window.other_clear = FAIL
-1662 WIN : dEQP-EGL.functional.native_color_mapping.native_window.other_render = FAIL
+1662 WIN : dEQP-EGL.functional.native_color_mapping.native_window.other_clear = SKIP
+1662 WIN : dEQP-EGL.functional.native_color_mapping.native_window.other_render = SKIP
 
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