vk: Enable handwriting gestures by default.

Launching in M85. Needs to land before Feature Freeze.

Bug: 1076172
Change-Id: I8e7634ae13b3dbfce066109b779ff27f6ea457db
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2235220
Commit-Queue: Scott Violet <sky@chromium.org>
Auto-Submit: Darren Shen <shend@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Cr-Commit-Position: refs/heads/master@{#776595}

ui/base/ui_base_features.cc

@@ -190,7 +190,7 @@ bool IsUseCommonSelectPopupEnabled() {
 
 #if defined(OS_CHROMEOS)
 const base::Feature kHandwritingGesture = {"HandwritingGesture",
-                                           base::FEATURE_DISABLED_BY_DEFAULT};
+                                           base::FEATURE_ENABLED_BY_DEFAULT};
 #endif
 
 const base::Feature kSynchronousPageFlipTesting{