[Payments] Put Web Payments feature on desktop behind flag

content/child/runtime_features.cc

Index: content/child/runtime_features.cc
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
index c2ac56ca6d5317ca7e161712793224fe40b04cfc..6bd1f2a86e962f79515973590f387180e2d08290 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -319,10 +319,10 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
 #if defined(OS_ANDROID)
   if (command_line.HasSwitch(switches::kDisableMediaSessionAPI))
     WebRuntimeFeatures::enableMediaSession(false);
+#endif

[please use gerrit instead, 2017/02/27 15:56:17]

I don't think this change is necessary. It's hard to tell if it will have any
side effects. Your CL should still work without it. Would you mind not touching
this particular file?

[Mathieu, 2017/02/27 18:05:51]

Unh. You're right. This is mysterious to me :)

 
   WebRuntimeFeatures::enablePaymentRequest(
       base::FeatureList::IsEnabled(features::kWebPayments));
-#endif
 
   // Sets the RuntimeEnabledFeatures for Navigation Preload feature only when
   // '--enable-features' command line flag is given. While experimenting this