Adding MimeHandlerView.

extensions/common/feature_switch.cc

Index: extensions/common/feature_switch.cc
diff --git a/extensions/common/feature_switch.cc b/extensions/common/feature_switch.cc
index b057863ce9dc74f574843ee37e942352842bf33e..4ff713755ff8b9bc46221c4127122f75868621f0 100644
--- a/extensions/common/feature_switch.cc
+++ b/extensions/common/feature_switch.cc
@@ -45,7 +45,9 @@ class CommonSwitches {
             switches::kEmbeddedExtensionOptions,
             FeatureSwitch::DEFAULT_DISABLED),
         app_view(switches::kAppView,
-                 FeatureSwitch::DEFAULT_DISABLED) {}
+                 FeatureSwitch::DEFAULT_DISABLED),
+        mime_handler_view(switches::kMimeHandlerView,
+                          FeatureSwitch::DEFAULT_DISABLED) {}
 
   // Enables extensions to be easily installed from sites other than the web
   // store.
@@ -63,6 +65,7 @@ class CommonSwitches {
   FeatureSwitch scripts_require_action;
   FeatureSwitch embedded_extension_options;
   FeatureSwitch app_view;
+  FeatureSwitch mime_handler_view;
 };
 
 base::LazyInstance<CommonSwitches> g_common_switches =
@@ -97,6 +100,9 @@ FeatureSwitch* FeatureSwitch::embedded_extension_options() {
 FeatureSwitch* FeatureSwitch::app_view() {
   return &g_common_switches.Get().app_view;
 }
+FeatureSwitch* FeatureSwitch::mime_handler_view() {
+  return &g_common_switches.Get().mime_handler_view;
+}
 
 FeatureSwitch::ScopedOverride::ScopedOverride(FeatureSwitch* feature,
                                               bool override_value)