[Payments] Reuse service payment app flag for desktop platforms

This is the first step to integrate service worker based
payment app on desktop platforms.

Bug: 762668
Change-Id: I74043350e87561d4d564bbc3ddd14b99a8468bcf
Reviewed-on: https://chromium-review.googlesource.com/653609
Reviewed-by: Pavel Feldman <[email protected]>
Commit-Queue: Ganggui Tang <[email protected]>
Cr-Commit-Position: refs/heads/master@{#500117}
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index a5df45fa..bbb5350 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -682,6 +682,9 @@
 extern const char kServiceWorkerNavigationPreloadName[];
 extern const char kServiceWorkerNavigationPreloadDescription[];
 
+extern const char kServiceWorkerPaymentAppsName[];
+extern const char kServiceWorkerPaymentAppsDescription[];
+
 extern const char kServiceWorkerScriptStreamingName[];
 extern const char kServiceWorkerScriptStreamingDescription[];
 
@@ -1168,9 +1171,6 @@
 extern const char kReaderModeInCCTName[];
 extern const char kReaderModeInCCTDescription[];
 
-extern const char kServiceWorkerPaymentAppsName[];
-extern const char kServiceWorkerPaymentAppsDescription[];
-
 extern const char kSetMarketUrlForTestingName[];
 extern const char kSetMarketUrlForTestingDescription[];