Update chooser row view when mouse click down and move over rows

chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm

Index: chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm b/chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm
index edcaef5eef99b2d167d6a5419ca294f1fafeb070..2651dd3c7fe988c9e007c64ef9d64b2126c4e5ee 100644
--- a/chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm
+++ b/chrome/browser/ui/cocoa/website_settings/chooser_bubble_ui_cocoa.mm
@@ -213,6 +213,12 @@ std::unique_ptr<BubbleUi> ChooserBubbleDelegate::BuildBubbleUi() {
   [connectButton_ setEnabled:[tableView_ numberOfSelectedRows] > 0];
 }
 
+// Selection changes (while the mouse button is still down).
+- (void)tableViewSelectionIsChanging:(NSNotification*)aNotification {
+  [chooserContentView_ updateContentRowColor];
+  [connectButton_ setEnabled:[tableView_ numberOfSelectedRows] > 0];
+}
+
 - (void)updateAnchorPosition {
   [self setParentWindow:[self getExpectedParentWindow]];
   [self setAnchorPoint:[self getExpectedAnchorPoint]];