app dragging: Enable flag by default for dogfood.

Bug: 847587
Change-Id: Iab2a11d1f11b6b6b703d77e7c94a01b564fd07d1
Reviewed-on: https://chromium-review.googlesource.com/1175411Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Commit-Queue: Min Chen <minch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583313}

ash/public/cpp/ash_features.cc

@@ -14,7 +14,7 @@ const base::Feature kDockedMagnifier{"DockedMagnifier",
                                      base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kDragAppsInTabletMode{"DragAppsInTabletMode",
-                                          base::FEATURE_DISABLED_BY_DEFAULT};
+                                          base::FEATURE_ENABLED_BY_DEFAULT};
 
 const base::Feature kDragTabsInTabletMode{"DragTabsInTabletMode",
                                           base::FEATURE_ENABLED_BY_DEFAULT};