Force searchview to stretch entire actionbar.

Bug: 30747805
Change-Id: If702ab934dbed6ee329b87dde565c1e381136849

src/com/android/settings/SettingsActivity.java

@@ -478,6 +478,7 @@ public class SettingsActivity extends SettingsDrawerActivity
         }
 
         mSearchMenuItem.setOnActionExpandListener(this);
+        mSearchView.setMaxWidth(Integer.MAX_VALUE);
         mSearchView.setOnQueryTextListener(this);
         mSearchView.setOnCloseListener(this);