Tighten clear-twice workaround on Windows Skylake Intel GPU

The workaround for calling clearRenderTargetView on small targets isn't needed on the newly released Intel D3D driver 15.46-4771 because the fix of this bug has been merged into this driver. BUG=chromium:655534 Change-Id: I90125971fd4b782b7363b8ca3104bd500e21a034 Reviewed-on: https://chromium-review.googlesource.com/668223 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

Tighten clear-twice workaround on Windows Skylake Intel GPU
61491505 · Jiawei Shao · Commit Bot · a5dc625c · 61491505
Commit 61491505 authored Sep 15, 2017 by Jiawei Shao Committed by Commit Bot Sep 21, 2017
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renderer11_utils.cpp src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp +3 -1

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--- a/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
+++ b/src/libANGLE/renderer/d3d/d3d11/renderer11_utils.cpp
@@ -2083,7 +2083,9 @@ angle::WorkaroundsD3D GenerateWorkarounds(const Renderer11DeviceCaps &deviceCaps
            d3d11_gl::GetIntelDriverVersion(deviceCaps.driverVersion) < IntelDriverVersion(4539);
        if (IsSkylake(adapterDesc.DeviceId))
        {
-            workarounds.callClearTwiceOnSmallTarget = true;
+            workarounds.callClearTwiceOnSmallTarget =
+                d3d11_gl::GetIntelDriverVersion(deviceCaps.driverVersion) <
+                IntelDriverVersion(4771);
            workarounds.emulateIsnanFloat =
                d3d11_gl::GetIntelDriverVersion(deviceCaps.driverVersion) <
                IntelDriverVersion(4542);