Add a return value to TapWebViewElementWithId

ios/web/public/test/web_view_interaction_test_util.h

Index: ios/web/public/test/web_view_interaction_test_util.h
diff --git a/ios/web/public/test/web_view_interaction_test_util.h b/ios/web/public/test/web_view_interaction_test_util.h
index ba7fc47e02be71dcf8e36779a5700e8733ad336c..bbc92cefa99c71d519f2ebf2ca4e0c451bc9e12b 100644
--- a/ios/web/public/test/web_view_interaction_test_util.h
+++ b/ios/web/public/test/web_view_interaction_test_util.h
@@ -9,10 +9,10 @@
 namespace web {
 namespace test {
 
-// Attempts to tap the element with |element_id| in the passed in |web_state|
-// using a JavaScript click() event.
-void TapWebViewElementWithId(web::WebState* web_state,
+// Returns whether the element with |element_id| in the passed |web_state| has
+// been tapped using a JavaScript click() event.
+bool TapWebViewElementWithId(web::WebState* web_state,
                              const std::string& element_id);
 
 }  // namespace test
-}  // namespace web
+}  // namespace web