[Hera] Be smarter about dismissing the callout

chrome/android/java/src/org/chromium/chrome/browser/toolbar/ToolbarLayout.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 org.chromium.chrome.browser.toolbar;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
 import android.annotation.SuppressLint;
@@ skipping 303 matching lines @@
     /**
      * Gives inheriting classes the chance to respond to
      * {@link org.chromium.chrome.browser.widget.findinpage.FindToolbar} state changes.
      * @param showing Whether or not the {@code FindToolbar} will be showing.
      */
     protected void handleFindToolbarStateChange(boolean showing) {
         mFindInPageToolbarShowing = showing;
     }
 
     /**
+     * Cleans up any code as necessary.
+     */
+    public void destroy() { }
+
+    /**
      * Sets the FullscreenManager, which controls when the toolbar is shown.
      */
     public void setFullscreenManager(FullscreenManager manager) { }
 
     /**
      * Sets the OnClickListener that will be notified when the TabSwitcher button is pressed.
      * @param listener The callback that will be notified when the TabSwitcher button is pressed.
      */
     public void setOnTabSwitcherClickHandler(OnClickListener listener) { }
 
@@ skipping 450 matching lines @@
         } else {
             mMenuButton.setContentDescription(getResources().getString(
                     R.string.accessibility_toolbar_btn_menu));
         }
     }
 
     @Override
     public void setReturnButtonListener(View.OnClickListener listener) {
     }
 }