Fix bug #15702424 add-wifi setting screen has no title

- pass the missing EXTRA_SHOW_FRAGMENT_TITLE_RESID
- define a new string for the Activity title
- code cleaning: remove a non needed call to getIntent()

Change-Id: I430d59c0225c6e7f23e78edf5644d07ef33a9d98

src/com/android/settings/SettingsActivity.java

@@ -476,7 +476,7 @@ public class SettingsActivity extends Activity
         mIsShortcut = isShortCutIntent(intent) || isLikeShortCutIntent(intent) ||
                 intent.getBooleanExtra(EXTRA_SHOW_FRAGMENT_AS_SHORTCUT, false);
 
-        final ComponentName cn = getIntent().getComponent();
+        final ComponentName cn = intent.getComponent();
         final String className = cn.getClassName();
 
         mIsShowingDashboard = className.equals(Settings.class.getName());