[Media, UI] Change MediaNotification style to MediaStyle

chrome/browser/android/chrome_feature_list.cc

Index: chrome/browser/android/chrome_feature_list.cc
diff --git a/chrome/browser/android/chrome_feature_list.cc b/chrome/browser/android/chrome_feature_list.cc
index c949f6ddaba348fd83dd040b744ffcd92b9871ca..21a9c7a608393f9a53282ee8a62e32b1a3d1aad2 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -26,6 +26,7 @@ namespace {
 // this array may either refer to features defined in this file (above) or in
 // other locations in the code base (e.g. chrome/, components/, etc).
 const base::Feature* kFeaturesExposedToJava[] = {
+    &kMediaStyleNotification,
     &kNTPOfflinePagesFeature,
     &kNTPSnippetsFeature,
     &kNTPToolbarFeature,
@@ -37,6 +38,10 @@ const base::Feature* kFeaturesExposedToJava[] = {
 
 }  // namespace
 
+const base::Feature kMediaStyleNotification {
+  "MediaStyleNotification", base::FEATURE_DISABLED_BY_DEFAULT
+};
+
 const base::Feature kNTPOfflinePagesFeature {
   "NTPOfflinePages", base::FEATURE_DISABLED_BY_DEFAULT
 };