Add app startup parameters to start the app in qr and incognito search.

ios/chrome/common/app_group/app_group_constants.h

Index: ios/chrome/common/app_group/app_group_constants.h
diff --git a/ios/chrome/common/app_group/app_group_constants.h b/ios/chrome/common/app_group/app_group_constants.h
index f4aa3c4f4779c42c685877fcdfd78f7d76f7db80..0c65b493b81402f5bf6ee744395b821628085448 100644
--- a/ios/chrome/common/app_group/app_group_constants.h
+++ b/ios/chrome/common/app_group/app_group_constants.h
@@ -54,6 +54,12 @@ extern const char kChromeAppGroupNewTabCommand[];
 // The command to focus the omnibox.
 extern const char kChromeAppGroupFocusOmniboxCommand[];
 
+// The command to open an incognito search.
+extern const char kChromeAppGroupIncognitoSearchCommand[];
+
+// The command to open the QR Code scanner.
+extern const char kChromeAppGroupQRScannerCommand[];
+
 // The key in kChromeAppGroupCommandPreference containing a NSDate at which
 // |kChromeAppGroupCommandAppPreference| issued the command.
 extern const char kChromeAppGroupCommandTimePreference[];