Removed webControllerDidSuppressDialog: callback.

ios/web/public/test/fakes/crw_test_web_state_observer.mm

Index: ios/web/public/test/fakes/crw_test_web_state_observer.mm
diff --git a/ios/web/public/test/fakes/crw_test_web_state_observer.mm b/ios/web/public/test/fakes/crw_test_web_state_observer.mm
index f1eb5ae1fbfc8ae5b31eafcc8ffc3c20c8516c6a..3f39e4b354a167d518d5d23b2a2ba246c4e0b9ed 100644
--- a/ios/web/public/test/fakes/crw_test_web_state_observer.mm
+++ b/ios/web/public/test/fakes/crw_test_web_state_observer.mm
@@ -37,6 +37,8 @@ TestUpdateFaviconUrlCandidatesInfo::~TestUpdateFaviconUrlCandidatesInfo() =
   // Arguments passed to |webStateDidChangeVisibleSecurityState:|.
   std::unique_ptr<web::TestDidChangeVisibleSecurityStateInfo>
       _didChangeVisibleSecurityStateInfo;
+  // Arguments passed to |webStateDidSuppressDialog:|.
+  std::unique_ptr<web::TestDidSuppressDialogInfo> _didSuppressDialogInfo;
   // Arguments passed to
   // |webState:didSubmitDocumentWithFormNamed:userInitiated:|.
   std::unique_ptr<web::TestSubmitDocumentInfo> _submitDocumentInfo;
@@ -89,6 +91,10 @@ TestUpdateFaviconUrlCandidatesInfo::~TestUpdateFaviconUrlCandidatesInfo() =
   return _didChangeVisibleSecurityStateInfo.get();
 }
 
+- (web::TestDidSuppressDialogInfo*)didSuppressDialogInfo {
+  return _didSuppressDialogInfo.get();
+}
+
 - (web::TestSubmitDocumentInfo*)submitDocumentInfo {
   return _submitDocumentInfo.get();
 }
@@ -188,6 +194,11 @@ TestUpdateFaviconUrlCandidatesInfo::~TestUpdateFaviconUrlCandidatesInfo() =
   _didChangeVisibleSecurityStateInfo->web_state = webState;
 }
 
+- (void)webStateDidSuppressDialog:(web::WebState*)webState {
+  _didSuppressDialogInfo = base::MakeUnique<web::TestDidSuppressDialogInfo>();
+  _didSuppressDialogInfo->web_state = webState;
+}
+
 - (void)webState:(web::WebState*)webState
     didSubmitDocumentWithFormNamed:(const std::string&)formName
                      userInitiated:(BOOL)userInitiated {