Fix widget update listener

 Bug: 4193627
 Just need to expand the lifecycle during which we listen for preference changes
 Specifically, instead of listening between onResume and onPause, listen between
 onCreate and onDestroy since the dialog that sets the preference will cause the
 fragment to receive an onPause.

Change-Id: I531d2b082f3a9e0ffdbf1051bebb0f4c17e15c63
diff --git a/src/com/android/browser/preferences/GeneralPreferencesFragment.java b/src/com/android/browser/preferences/GeneralPreferencesFragment.java
index d64f062..0c63ab5 100644
--- a/src/com/android/browser/preferences/GeneralPreferencesFragment.java
+++ b/src/com/android/browser/preferences/GeneralPreferencesFragment.java
@@ -68,6 +68,8 @@
                 .getString(BrowserSettings.PREF_HOMEPAGE, null));
         ((BrowserHomepagePreference) e).setCurrentPage(
                 getActivity().getIntent().getStringExtra(BrowserPreferencesPage.CURRENT_PAGE));
+        mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
+        mSharedPrefs.registerOnSharedPreferenceChangeListener(mListener);
     }
 
     @Override
@@ -94,13 +96,11 @@
         // Setup the proper state for the sync with chrome item
         mChromeSync = findPreference(PREF_CHROME_SYNC);
         refreshUi();
-        mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
-        mSharedPrefs.registerOnSharedPreferenceChangeListener(mListener);
     }
 
     @Override
-    public void onPause() {
-        super.onPause();
+    public void onDestroy() {
+        super.onDestroy();
 
         mSharedPrefs.unregisterOnSharedPreferenceChangeListener(mListener);
     }