Speculative fixes for search engine crashes.

chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEnginePreference.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEnginePreference.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEnginePreference.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEnginePreference.java
index 28f9854e2f6c7e5e81c8df5bd73fd882df130548..2bcbcd405d84cafe3d7978a5f85ba56d29f47ce6 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEnginePreference.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/SearchEnginePreference.java
@@ -56,11 +56,14 @@ public class SearchEnginePreference extends PreferenceFragment {
     }
 
     @Override
-    public void onResume() {
-        super.onResume();
-        /**
-         * Handle UI update when location setting for a search engine is changed.
-         */
-        mSearchEngineAdapter.notifyDataSetChanged();
+    public void onStart() {
+        super.onStart();
+        mSearchEngineAdapter.start();
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+        mSearchEngineAdapter.stop();
     }
 }