Fix bubble presentation for non-UI refresh

The bubble presentation of UI Refresh tips in non-UI Refresh app should
be a no-op.

Bug: 869400
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Change-Id: I308c2a5dee2088af8b6ca56567a7089944f8bf34
Reviewed-on: https://chromium-review.googlesource.com/1156694
Commit-Queue: edchin <edchin@chromium.org>
Reviewed-by: edchin <edchin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579904}

ios/chrome/browser/ui/bubble/bubble_presenter.mm

@@ -173,6 +173,9 @@ const CGFloat kBubblePresentationDelay = 1;
 }
 
 - (void)presentLongPressBubble {
+  if (!IsUIRefreshPhase1Enabled())
+    return;
+
   if (self.longPressToolbarTipBubblePresenter.isUserEngaged)
     return;
 
@@ -231,7 +234,7 @@ presentBubbleForFeature:(const base::Feature&)feature
 // Presents a bubble associated with the bottom toolbar tip in-product help
 // promotion. This method requires that |self.browserState| is not NULL.
 - (void)presentBottomToolbarTipBubble {
-  if (!IsSplitToolbarMode())
+  if (!IsUIRefreshPhase1Enabled() || !IsSplitToolbarMode())
     return;
 
   if (![self canPresentBubble])