Implement GL_CHROMIUM_sync_query for D3D9 and D3D11.

BUG=angleproject:1366

Change-Id: Iadde61968f45b969c76578a6dd9116a25d63fb4b
Reviewed-on: https://chromium-review.googlesource.com/341230
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libANGLE/State.cpp b/src/libANGLE/State.cpp
index a1d2752..40f0656 100644
--- a/src/libANGLE/State.cpp
+++ b/src/libANGLE/State.cpp
@@ -159,6 +159,7 @@
     mActiveQueries[GL_ANY_SAMPLES_PASSED_CONSERVATIVE].set(nullptr);
     mActiveQueries[GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN].set(nullptr);
     mActiveQueries[GL_TIME_ELAPSED_EXT].set(nullptr);
+    mActiveQueries[GL_COMMANDS_COMPLETED_CHROMIUM].set(nullptr);
 
     mProgram = nullptr;