Update dropdown colors and list readability for SearchView.

Dismiss IME on launching suggestion.
diff --git a/core/java/android/widget/SearchView.java b/core/java/android/widget/SearchView.java
index 847651c..1d36b49 100644
--- a/core/java/android/widget/SearchView.java
+++ b/core/java/android/widget/SearchView.java
@@ -717,6 +717,7 @@
             if (mOnSuggestionListener == null
                     || !mOnSuggestionListener.onSuggestionClicked(position)) {
                 launchSuggestion(position, KeyEvent.KEYCODE_UNKNOWN, null);
+                setImeVisibility(false);
                 dismissSuggestions();
             }
         }