Log base::Features in Launch.FlagsAtStartup

components/flags_ui/flags_state.cc

Index: components/flags_ui/flags_state.cc
diff --git a/components/flags_ui/flags_state.cc b/components/flags_ui/flags_state.cc
index f7d0eb8233b34927472867ef4525f4c9c54412a5..468074481c30684fb8cb8ce1602ec767c53f68ce 100644
--- a/components/flags_ui/flags_state.cc
+++ b/components/flags_ui/flags_state.cc
@@ -280,8 +280,17 @@ std::set<std::string> FlagsState::GetSwitchesFromFlags(
     DCHECK(entry_it != name_to_switch_map.end());
 
     const SwitchEntry& entry = entry_it->second;
-    if (!entry.switch_name.empty())
-      switches.insert("--" + entry.switch_name);
+    if (!entry.switch_name.empty()) {

[Alexei Svitkine (slow), 2016/09/15 19:59:18]

Nit: No {}'s if the body is a single line. Please also remove from line 288.

[lawrencewu, 2016/09/16 15:34:56]

Done.

+      switches.insert(entry.switch_name);
+    }
+
+    if (!entry.feature_name.empty()) {
+      if (entry.feature_state) {
+        switches.insert(entry.feature_name + ":enabled");
+      } else {
+        switches.insert(entry.feature_name + ":disabled");
+      }
+    }
   }
   return switches;
 }