[Media Router] Enable MR by default now that it is at 100% in stable.

chrome/browser/ui/toolbar/toolbar_actions_model_unittest.cc

Index: chrome/browser/ui/toolbar/toolbar_actions_model_unittest.cc
diff --git a/chrome/browser/ui/toolbar/toolbar_actions_model_unittest.cc b/chrome/browser/ui/toolbar/toolbar_actions_model_unittest.cc
index 609619857d7f0318b4ecaa7027dfcd1de78f1a0a..54463c441e06bef29bbf4182862c6e20df6e2ec9 100644
--- a/chrome/browser/ui/toolbar/toolbar_actions_model_unittest.cc
+++ b/chrome/browser/ui/toolbar/toolbar_actions_model_unittest.cc
@@ -902,6 +902,10 @@ TEST_F(ToolbarActionsModelUnitTest, ActionsToolbarSizeAfterPrefChange) {
 // Test that, in the absence of the extension-action-redesign switch, the
 // model only contains extensions with browser actions and component actions.
 TEST_F(ToolbarActionsModelUnitTest, TestToolbarExtensionTypesDisabledSwitch) {
+  // Disable Media Router first, since Extension Action Redesign would be force
+  // enabled otherwise.
+  extensions::FeatureSwitch::ScopedOverride enable_media_router(
+      extensions::FeatureSwitch::media_router(), false);
   extensions::FeatureSwitch::ScopedOverride enable_redesign(
       extensions::FeatureSwitch::extension_action_redesign(), false);
   Init();
@@ -970,6 +974,10 @@ TEST_F(ToolbarActionsModelUnitTest, TestToolbarExtensionTypesEnabledSwitch) {
 // Test that hiding actions on the toolbar results in their removal from the
 // model when the redesign switch is not enabled.
 TEST_F(ToolbarActionsModelUnitTest, ActionsToolbarActionsVisibilityNoSwitch) {
+  // Disable Media Router first, since Extension Action Redesign would be force
+  // enabled otherwise.
+  extensions::FeatureSwitch::ScopedOverride enable_media_router(
+      extensions::FeatureSwitch::media_router(), false);
   extensions::FeatureSwitch::ScopedOverride enable_redesign(
       extensions::FeatureSwitch::extension_action_redesign(), false);
   Init();