Mode code cleaning: remove obsolete references to EXTRA_NO_HEADERS

- the EXTRA_NO_HEADERS flag as no more meaning as we are showing
the Tiles (previously named "Headers") only in the Dashboard
(which is the main Settings screen)

Change-Id: I55656de0d28ca9c84adbe6647d870838b4ac230b

src/com/android/settings/ChooseLockGeneric.java

@@ -46,7 +46,6 @@ public class ChooseLockGeneric extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockGenericFragment.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/ChooseLockPassword.java

@@ -58,7 +58,6 @@ public class ChooseLockPassword extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockPasswordFragment.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/ChooseLockPattern.java

@@ -63,7 +63,6 @@ public class ChooseLockPattern extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ChooseLockPatternFragment.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/ConfirmLockPassword.java

@@ -48,7 +48,6 @@ public class ConfirmLockPassword extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPasswordFragment.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/ConfirmLockPattern.java

@@ -72,7 +72,6 @@ public class ConfirmLockPattern extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPatternFragment.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/SettingsActivity.java

@@ -153,15 +153,6 @@ public class SettingsActivity extends Activity
      */
     public static final String EXTRA_FRAGMENT_ARG_KEY = ":settings:fragment_args_key";
 
-    /**
-     * When starting this activity, the invoking Intent can contain this extra
-     * boolean that the header list should not be displayed.  This is most often
-     * used in conjunction with {@link #EXTRA_SHOW_FRAGMENT} to launch
-     * the activity to display a specific fragment that the user has navigated
-     * to.
-     */
-    public static final String EXTRA_NO_HEADERS = ":settings:no_headers";
-
     public static final String BACK_STACK_PREFS = ":settings:prefs";
 
     // extras that allow any preference activity to be launched as part of a wizard
@@ -670,17 +661,6 @@ public class SettingsActivity extends Activity
         return false;
     }
 
-    /**
-     * Called to determine whether the header list should be hidden.
-     * The default implementation returns the
-     * value given in {@link #EXTRA_NO_HEADERS} or false if it is not supplied.
-     * This is set to false, for example, when the activity is being re-launched
-     * to show a particular preference activity.
-     */
-    public boolean onIsHidingHeaders() {
-        return getIntent().getBooleanExtra(EXTRA_NO_HEADERS, false);
-    }
-
     @Override
     public Intent getIntent() {
         Intent superIntent = super.getIntent();

src/com/android/settings/Utils.java

@@ -555,7 +555,6 @@ public class Utils {
         intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT, fragmentName);
         intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_ARGUMENTS, args);
         intent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT_TITLE, title);
-        intent.putExtra(SettingsActivity.EXTRA_NO_HEADERS, true);
         return intent;
     }
 }

src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java

@@ -146,10 +146,8 @@ public abstract class ToggleFeaturePreferenceFragment
 
     public void setTitle(String title) {
         final SettingsActivity activity = (SettingsActivity) getActivity();
-        if (!activity.onIsHidingHeaders()) {
         getActivity().setTitle(title);
     }
-    }
 
     protected void onProcessArguments(Bundle arguments) {
         if (arguments == null) {

src/com/android/settings/accounts/SyncSettingsActivity.java

@@ -29,7 +29,6 @@ public class SyncSettingsActivity extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(SettingsActivity.EXTRA_SHOW_FRAGMENT, SyncSettings.class.getName());
-        modIntent.putExtra(SettingsActivity.EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/applications/InstalledAppDetailsTop.java

@@ -25,7 +25,6 @@ public class InstalledAppDetailsTop extends SettingsActivity {
     public Intent getIntent() {
         Intent modIntent = new Intent(super.getIntent());
         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, InstalledAppDetails.class.getName());
-        modIntent.putExtra(EXTRA_NO_HEADERS, true);
         return modIntent;
     }
 

src/com/android/settings/bluetooth/BluetoothSettings.java

@@ -141,11 +141,9 @@ public final class BluetoothSettings extends DeviceListPreferenceFragment implem
     public void onStop() {
         super.onStop();
         final SettingsActivity activity = (SettingsActivity) getActivity();
-        if (!activity.onIsHidingHeaders()) {
         activity.getActionBar().setDisplayOptions(0, ActionBar.DISPLAY_SHOW_CUSTOM);
         activity.getActionBar().setCustomView(null);
     }
-    }
 
     @Override
     void addPreferencesForActivity() {

src/com/android/settings/inputmethod/InputMethodAndSubtypeEnablerActivity.java

@@ -25,7 +25,6 @@ public class InputMethodAndSubtypeEnablerActivity extends SettingsActivity {
         final Intent modIntent = new Intent(super.getIntent());
         if (!modIntent.hasExtra(EXTRA_SHOW_FRAGMENT)) {
             modIntent.putExtra(EXTRA_SHOW_FRAGMENT, InputMethodAndSubtypeEnabler.class.getName());
-            modIntent.putExtra(EXTRA_NO_HEADERS, true);
         }
         return modIntent;
     }

src/com/android/settings/wifi/WifiSettings.java

@@ -416,24 +416,17 @@ public class WifiSettings extends RestrictedSettingsFragment
             final Activity activity = getActivity();
 
             mSwitch = new Switch(activity.getActionBar().getThemedContext());
-            boolean addSwitch = true;
 
-            if (activity instanceof WifiPickerActivity) {
-                PreferenceActivity pa = (PreferenceActivity) activity;
-                addSwitch = pa.onIsHidingHeaders();
-            }
-
-            if (addSwitch) {
             final int padding = activity.getResources().getDimensionPixelSize(
                     R.dimen.action_bar_switch_padding);
             mSwitch.setPaddingRelative(0, 0, padding, 0);
+
             activity.getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM,
                     ActionBar.DISPLAY_SHOW_CUSTOM);
             activity.getActionBar().setCustomView(mSwitch, new ActionBar.LayoutParams(
                     ActionBar.LayoutParams.WRAP_CONTENT,
                     ActionBar.LayoutParams.WRAP_CONTENT,
                     Gravity.CENTER_VERTICAL | Gravity.END));
-            }
 
             mWifiEnabler = new WifiEnabler(activity, mSwitch);
         }
@@ -442,20 +435,10 @@ public class WifiSettings extends RestrictedSettingsFragment
     @Override
     public void onStop() {
         super.onStop();
-        Activity activity = getActivity();
+        final Activity activity = getActivity();
-        boolean onIsHidingHeaders = true;
-        if (activity instanceof SettingsActivity){
-            SettingsActivity sa = (SettingsActivity) activity;
-            onIsHidingHeaders = sa.onIsHidingHeaders();
-        } else if (activity instanceof PreferenceActivity) {
-            PreferenceActivity pa = (PreferenceActivity) activity;
-            onIsHidingHeaders = pa.onIsHidingHeaders();
-        }
-        if (!onIsHidingHeaders) {
         activity.getActionBar().setDisplayOptions(0, ActionBar.DISPLAY_SHOW_CUSTOM);
         activity.getActionBar().setCustomView(null);
     }
-    }
 
     @Override
     public void onResume() {