[Contextual Search] Fix Promo behavior.

chrome/android/java/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManagementDelegate.java

 // Copyright 2014 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.contextualsearch;
 
 import org.chromium.chrome.browser.Tab;
 import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanelDelegate;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content_public.common.TopControlsState;
 
 /**
  * The delegate that provides global management functionality for Contextual Search.
  */
 public interface ContextualSearchManagementDelegate {
     /**
+     * Sets the preference state to enabled or disabled.
+     *
+     * @param enabled Whether the preference should be set to enabled.
+     */
+    public void setPreferenceState(boolean enabled);
+
+    /**
+     * @return Whether the Opt-out promo is available to be be shown in the panel.
+     */
+    boolean isOptOutPromoAvailable();
+
+    /**
      * @return Whether or not the Contextual Search Bar is peeking.
      */
     boolean isSearchBarPeeking();
 
     /**
      * Updates the top controls state for the base tab.  As these values are set at the renderer
      * level, there is potential for this impacting other tabs that might share the same
      * process. See {@link Tab#updateTopControlsState(int current, boolean animate)}
      * @param current The desired current state for the controls.  Pass
      *                {@link TopControlsState#BOTH} to preserve the current position.
@@ skipping 56 matching lines @@
      * showing as well as any bar that's peeking.
      */
     void dismissContextualSearchBar();
 
     /**
      * Gets the {@code ContentViewCore} associated with Contextual Search Panel.
      * @return Contextual Search Panel's {@code ContentViewCore}.
      */
     ContentViewCore getSearchContentViewCore();
 }