Implement compositor thread VSync aligned event queue

ui/events/blink/blink_features.h

Index: ui/events/blink/blink_features.h
diff --git a/ui/events/blink/blink_features.h b/ui/events/blink/blink_features.h
new file mode 100644
index 0000000000000000000000000000000000000000..74a05f5028660f26633f46e475518a75f50ab706
--- /dev/null
+++ b/ui/events/blink/blink_features.h
@@ -0,0 +1,16 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_EVENTS_BLINK_BLINK_FEATURES_H_
+#define UI_EVENTS_BLINK_BLINK_FEATURES_H_
+
+#include "base/feature_list.h"
+
+namespace features {
+
+// VSync aligned input events support.

[tdresser, 2016/11/01 18:12:44]

Let's clarify that this is for compositor gestures only.

[chongz, 2016/11/02 21:29:32]

Done. Moved to .cc file according to patterns in:
https://cs.chromium.org/chromium/src/content/public/common/content_features.c...

+extern const base::Feature kVsyncAlignedInputEvents;
+}

[tdresser, 2016/11/01 18:12:44]

inconsistent whitespace for namespace brackets. I think you want a newline
before the }

[chongz, 2016/11/02 21:29:32]

Done. It was removed by 'cl format'.

+
+#endif  // UI_EVENTS_BLINK_BLINK_FEATURES_H_