cros: Disable double-tap-to-zoom in tablet mode

TBR=sky@chromium.org
BUG=895574

Change-Id: I78f2afbc465d27d26f9c9f27cfdac597b43dd944
Reviewed-on: https://chromium-review.googlesource.com/c/1311693Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Commit-Queue: Ahmed Fakhry <afakhry@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604445}

chrome/browser/browser_features.cc

@@ -10,7 +10,7 @@ namespace features {
 // Enables being able to zoom a web page by double tapping in Chrome OS tablet
 // mode.
 const base::Feature kDoubleTapToZoomInTabletMode{
-    "DoubleTapToZoomInTabletMode", base::FEATURE_ENABLED_BY_DEFAULT};
+    "DoubleTapToZoomInTabletMode", base::FEATURE_DISABLED_BY_DEFAULT};
 #endif
 
 }  // namespace features