Fix window leaks related to the suggestion popup.

chrome/android/shell/java/src/org/chromium/chrome/shell/omnibox/SuggestionPopup.java

Index: chrome/android/shell/java/src/org/chromium/chrome/shell/omnibox/SuggestionPopup.java
diff --git a/chrome/android/shell/java/src/org/chromium/chrome/shell/omnibox/SuggestionPopup.java b/chrome/android/shell/java/src/org/chromium/chrome/shell/omnibox/SuggestionPopup.java
index 0948543598d567deb0f4fed21a0ebe6fca97d940..883918adac4389ee24c20c8c79c44d17f027598c 100644
--- a/chrome/android/shell/java/src/org/chromium/chrome/shell/omnibox/SuggestionPopup.java
+++ b/chrome/android/shell/java/src/org/chromium/chrome/shell/omnibox/SuggestionPopup.java
@@ -80,6 +80,14 @@ public class SuggestionPopup implements OnSuggestionsReceivedListener, TextWatch
     }
 
     /**
+     * Stops the autocomplete controller and closes the suggestion popup.
+     */
+    public void hideSuggestions() {
+        stopAutocomplete(true);
+        dismissPopup();
+    }
+
+    /**
      * Signals the autocomplete controller to stop generating suggestions and
      * cancels the queued task to start the autocomplete controller, if any.
      *