Prevent tab reparenting from reordering tabs

Non-foreground tabs were being reattached in the reverse order, but this
is unnecessary since the default add behavior adds the tabs to the end.

Bug: 1053388
Change-Id: Id768184cf3d02b679568eb3d0f72a262dacc522d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2062686Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Commit-Queue: Brandon Wylie <wylieb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#742337}

chrome/android/java/src/org/chromium/chrome/browser/night_mode/NightModeReparentingController.java

@@ -52,7 +52,7 @@ public class NightModeReparentingController implements NightModeStateProvider.Ob
         // to be reparented last.
         TabReparentingParams foregroundTabParams = null;
         SparseArray<AsyncTabParams> paramsArray = AsyncTabParamsManager.getAsyncTabParams().clone();
-        for (int i = paramsArray.size() - 1; i >= 0; i--) {
+        for (int i = 0; i < paramsArray.size(); i++) {
             int tabId = paramsArray.keyAt(i);
             AsyncTabParams params = paramsArray.get(tabId);
             if (!(params instanceof TabReparentingParams)) continue;