Remove the unseen state in UI Refresh

This CL removes the unseen state (in the tools menu button in the
toolbar) when the UI Refresh flag is enabled.

Bug: 828367, 831134
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I4446d5b4f2565f256e4fedb829a77e93295b0d00
Reviewed-on: https://chromium-review.googlesource.com/1014092Reviewed-by: Olivier Robin <olivierrobin@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#551302}

ios/chrome/browser/ui/popup_menu/popup_menu_mediator.mm

@@ -423,8 +423,7 @@ PopupMenuToolsItem* CreateTableViewItem(int titleID,
 }
 
 - (void)unseenStateChanged:(BOOL)unseenItemsExist {
-  // TODO(crbug.com/828367): Implement this once the "unseen items effect" is
-  // defined.
+  // TODO(crbug.com/800266): Remove this method.
 }
 
 #pragma mark - Popup updates (Private)

ios/chrome/browser/ui/toolbar/buttons/toolbar_tools_menu_button.mm

@@ -121,7 +121,11 @@ const CGFloat kStrokeEndAtApogee = 1;
 }
 
 - (void)triggerAnimation {
-  [self animateToColor:toolbar::HighlighButtonTint(style_)];
+  if (IsUIRefreshPhase1Enabled()) {
+    [self animateToColor:self.tintColor];
+  } else {
+    [self animateToColor:toolbar::HighlighButtonTint(style_)];
+  }
 }
 
 #pragma mark - Private