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

chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java

Index: chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
diff --git a/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java b/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
index 6c12fb57d647c558d50c5313e1dc3ad455a9f4db..366e07f75b0dd4d006095bbcd0567232a57593af 100644
--- a/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
+++ b/chrome/android/shell/java/src/org/chromium/chrome/shell/ChromeShellActivity.java
@@ -434,6 +434,11 @@ public class ChromeShellActivity extends AppCompatActivity implements AppMenuPro
     }
 
     @Override
+    public int getFooterResourceId() {
+        return 0;
+    }
+
+    @Override
     public void prepareMenu(Menu menu) {
         menu.setGroupVisible(R.id.MAIN_MENU, true);
         ChromeShellTab activeTab = getActiveTab();