Add a footer at the bottom of the menu for custom tabs

chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuPropertiesDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuPropertiesDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuPropertiesDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuPropertiesDelegate.java
index a157c7457ef7d94933d847fb0e09a3131a0370ef..176eb874dcfdb83b7fcb5ec39422ff0f9904d415 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuPropertiesDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/appmenu/AppMenuPropertiesDelegate.java
@@ -17,6 +17,11 @@ public interface AppMenuPropertiesDelegate {
     boolean shouldShowAppMenu();
 
     /**
+     * @return Whether the app menu should contain a Chrome branding footer.
+     */
+    boolean shouldContainBrandingFooter();

[newt (away), 2015/07/10 16:08:38]

How about changing this to getFooterResourceId(), and allowing the return value
to be 0 or a valid resource? That would keep all knowledge of the "powered by
chrome" footer inside of CustomTabAppMenuPropertiesDelegate.java.

[Yusuf, 2015/07/10 18:43:47]

Done.

+
+    /**
      * Allows the delegate to show and hide items before the App Menu is shown.
      * @param mMenu Menu that will be used as the source for the App Menu pop up.
      */