Fix beep when navigating/closing a page with find bar open

chrome/browser/ui/find_bar/find_bar_controller.cc

Index: chrome/browser/ui/find_bar/find_bar_controller.cc
diff --git a/chrome/browser/ui/find_bar/find_bar_controller.cc b/chrome/browser/ui/find_bar/find_bar_controller.cc
index db9cfcefd123182f20140dccf9165747410969e3..2f4ba05a0a1a10e5a12c9c9c78452aff203888e7 100644
--- a/chrome/browser/ui/find_bar/find_bar_controller.cc
+++ b/chrome/browser/ui/find_bar/find_bar_controller.cc
@@ -140,7 +140,8 @@ void FindBarController::Observe(int type,
     if (content::Source<WebContents>(source).ptr() == web_contents_) {
       UpdateFindBarForCurrentResult();
       if (find_tab_helper->find_result().final_update() &&
-          find_tab_helper->find_result().number_of_matches() == 0) {
+          find_tab_helper->find_result().number_of_matches() == 0 &&
+          !find_tab_helper->find_result().was_frame_removal()) {
         const base::string16& last_search =
             find_tab_helper->previous_find_text();
         const base::string16& current_search = find_tab_helper->find_text();