Notification custom layouts: keep settings icon and label together in rtl layout.

chrome/android/java/res/values-v17/styles.xml

Index: chrome/android/java/res/values-v17/styles.xml
diff --git a/chrome/android/java/res/values-v17/styles.xml b/chrome/android/java/res/values-v17/styles.xml
index 36fd10bc0e6774aa99458e65a43f1ac76e43c2cd..ba1de2a173ac092ee99e4b1e77f4aa9d8b448f9b 100644
--- a/chrome/android/java/res/values-v17/styles.xml
+++ b/chrome/android/java/res/values-v17/styles.xml
@@ -324,6 +324,8 @@
         parent="@style/WebNotificationButton">
         <item name="android:textAppearance">@style/TextAppearance.StatusBar.EventContent.Line2</item>
         <item name="android:paddingStart">40dp</item>
+        <!-- Margin at the end to avoid overlap with the small icon. -->
+        <item name="android:layout_marginEnd">24dp</item>
     </style>
     <style name="WebNotificationSettingsIcon">
         <item name="android:layout_marginStart">8dp</item>