Fix to bottom bar behavior

chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package android.support.customtabs;
 
 import android.app.Activity;
 import android.app.ActivityOptions;
 import android.app.PendingIntent;
 import android.content.Intent;
@@ skipping 40 matching lines @@
      * <p>
      * The data associated with this extra can be either a bundle or an {@link ArrayList} of
      * bundles. If an {@link ArrayList} is given, only the bundle with the id of
      * {@link #TOOLBAR_ACTION_BUTTON_ID} will be displayed on toolbar; the rest will be put on a
      * bottom bar.
      */
     public static final String EXTRA_ACTION_BUTTON_BUNDLE =
             "android.support.customtabs.extra.ACTION_BUTTON_BUNDLE";
 
     /**
+     * List<Bundle> used for adding items to the top and bottom action bars. The client should
+     * provide an ID, a description, an icon {@link Bitmap} for each item. They may also provide a
+     * {@link PendingIntent} if the item is a button.
+     */
+    public static final String EXTRA_ACTION_BAR_ITEMS =
+            "android.support.customtabs.extra.ACTION_BAR_ITEMS";
+
+    /**
      * Key that specifies the {@link Bitmap} to be used as the image source for the action button.
      */
     public static final String KEY_ICON = "android.support.customtabs.customaction.ICON";
 
     /**
      * Key that specifies the content description for the custom action button.
      */
     public static final String KEY_DESCRIPTION =
             "android.support.customtabs.customaction.DESCRIPTION";
 
@@ skipping 107 matching lines @@
                         Bundle.class.getMethod("putIBinder", String.class, IBinder.class);
                 putBinderMethod.invoke(bundle, key, binder);
             }
         } catch (InvocationTargetException | IllegalAccessException | IllegalArgumentException
                 | NoSuchMethodException e) {
             return false;
         }
         return true;
     }
 }