Rename Workarounds to WorkaroundsD3D.

It is not referenced outside of the d3d classes.

BUG=angleproject:884

Change-Id: Ibeec034b1b78b569bea2f1c77d6a686b58b8e010
Reviewed-on: https://chromium-review.googlesource.com/288582
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/renderer/d3d/ProgramD3D.cpp b/src/libANGLE/renderer/d3d/ProgramD3D.cpp
index 94d119a..7c8520a 100644
--- a/src/libANGLE/renderer/d3d/ProgramD3D.cpp
+++ b/src/libANGLE/renderer/d3d/ProgramD3D.cpp
@@ -2003,11 +2003,11 @@
     mTransformFeedbackBufferMode = GL_NONE;
 
     mVertexHLSL.clear();
-    mVertexWorkarounds.reset();
+    mVertexWorkarounds = D3DCompilerWorkarounds();
     mShaderVersion = 100;
 
     mPixelHLSL.clear();
-    mPixelWorkarounds.reset();
+    mPixelWorkarounds = D3DCompilerWorkarounds();
     mUsesFragDepth = false;
     mPixelShaderKey.clear();
     mUsesPointSize = false;