[Contextual Search] Implements Opt-out promo.

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
index 748618d98d72dcbc5f03f76e4cf6a1865e1190d7..012b24ff5e4670054d61890ef61c719713c5a02e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/contextualsearch/ContextualSearchPanelDelegate.java
@@ -6,6 +6,7 @@ package org.chromium.chrome.browser.compositor.bottombar.contextualsearch;
 
 import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanel.PanelState;
 import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanel.StateChangeReason;
+import org.chromium.chrome.browser.widget.ContextualSearchControl;
 
 /**
  * The delegate that that interfaces with the {@link ContextualSearchPanel}.
@@ -118,4 +119,9 @@ public interface ContextualSearchPanelDelegate {
      * @param wasPrefetch Whether the request was prefetch-enabled.
      */
     void onSearchResultsLoaded(boolean wasPrefetch);
+
+    /**
+     * @return ContextualSearchControl The Android View that renders the BottomBar text.
+     */
+    ContextualSearchControl getContextualSearchControl();
 }