Added flag --extensions-in-action-box to split Action Box and Extensions in it.

chrome/common/extensions/extension_switch_utils.cc

Index: chrome/common/extensions/extension_switch_utils.cc
diff --git a/chrome/common/extensions/extension_switch_utils.cc b/chrome/common/extensions/extension_switch_utils.cc
index 8b41231917b059c0acb68c24542dda745838f411..883e9aab7176af6095165b7d695e5994126c61f9 100644
--- a/chrome/common/extensions/extension_switch_utils.cc
+++ b/chrome/common/extensions/extension_switch_utils.cc
@@ -27,6 +27,11 @@ bool IsActionBoxEnabled() {
       switches::kEnableActionBox);
 }
 
+bool IsExtensionsInActionBoxEnabled() {
+  return IsActionBoxEnabled() && CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableExtensionsInActionBox);
+}
+
 bool AreScriptBadgesEnabled() {
   return CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableScriptBadges);