Change Nav bar style to use system nav (new style for Nexus N+)

Bug: 27612740

Change-Id: I309cf8252285130a0e1d2c03ca664706e73cce16

src/com/android/settings/SettingsActivity.java

@@ -385,7 +385,6 @@ public class SettingsActivity extends SettingsDrawerActivity
     private boolean mIsShowingDashboard;
     private boolean mIsShortcut;
 
-    private int mMainContentId = R.id.main_content;
     private ViewGroup mContent;
 
     private SearchView mSearchView;
@@ -558,7 +557,7 @@ public class SettingsActivity extends SettingsDrawerActivity
         setContentView(mIsShowingDashboard ?
                 R.layout.settings_main_dashboard : R.layout.settings_main_prefs);
 
-        mContent = (ViewGroup) findViewById(mMainContentId);
+        mContent = (ViewGroup) findViewById(R.id.main_content);
 
         getFragmentManager().addOnBackStackChangedListener(this);
 
@@ -687,14 +686,6 @@ public class SettingsActivity extends SettingsDrawerActivity
                 + " ms");
     }
 
-    /**
-     * Sets the id of the view containing the main content. Should be called before calling super's
-     * onCreate.
-     */
-    protected void setMainContentId(int contentId) {
-        mMainContentId = contentId;
-    }
-
     private void setTitleFromIntent(Intent intent) {
         final int initialTitleResId = intent.getIntExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID, -1);
         if (initialTitleResId > 0) {
@@ -975,7 +966,7 @@ public class SettingsActivity extends SettingsDrawerActivity
      */
     public void startPreferenceFragment(Fragment fragment, boolean push) {
         FragmentTransaction transaction = getFragmentManager().beginTransaction();
-        transaction.replace(mMainContentId, fragment);
+        transaction.replace(R.id.main_content, fragment);
         if (push) {
             transaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
             transaction.addToBackStack(BACK_STACK_PREFS);
@@ -996,7 +987,7 @@ public class SettingsActivity extends SettingsDrawerActivity
         }
         Fragment f = Fragment.instantiate(this, fragmentName, args);
         FragmentTransaction transaction = getFragmentManager().beginTransaction();
-        transaction.replace(mMainContentId, f);
+        transaction.replace(R.id.main_content, f);
         if (withTransition) {
             TransitionManager.beginDelayedTransition(mContent);
         }
@@ -1193,7 +1184,7 @@ public class SettingsActivity extends SettingsDrawerActivity
         if (mSearchResultsFragment != null) {
             return;
         }
-        Fragment current = getFragmentManager().findFragmentById(mMainContentId);
+        Fragment current = getFragmentManager().findFragmentById(R.id.main_content);
         if (current != null && current instanceof SearchResultsSummary) {
             mSearchResultsFragment = (SearchResultsSummary) current;
         } else {