[Night Light] CL2: Ash and system tray work

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index b56f942fa42c89cd7f967db5631335930e733a0d..6e234e8bfeb40883d9bcf354d7d13b2d77afc514 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -261,6 +261,7 @@
 #endif
 
 #if defined(USE_ASH)
+#include "ash/system/night_light/night_light_controller.h"
 #include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
 #endif
 
@@ -644,6 +645,7 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
 
 #if defined(USE_ASH)
   ash::launcher::RegisterChromeLauncherUserPrefs(registry);
+  ash::NightLightController::RegisterPrefs(registry);

[James Cook, 2017/05/05 17:12:33]

Can this be done inside of ash somewhere, like maybe get called during Shell
init?

If not, can you make a one-line function ash::Shell::RegisterPrefs() and bounce
the call through to NightLightController? We'll need prefs registration in ash
for mustash and that would be a convenient place to call from.

[afakhry, 2017/05/05 20:04:12]

I don't think we can do it in Shell init, but I might be wrong. I believe this
has to be called from Chrome for the profile after login.  Shell init happens
much earlier than that.

But I like the idea of having a central place in ash that registers all ash
prefs. So, done!

 #endif
 
 #if !defined(OS_ANDROID) && !defined(OS_IOS)