Remove rotation-lock from Display settings.

Ability to lock device to natural orientation is still available
under Accessibility.

Bug:11062710
Change-Id: I2045e16cfc676ee75d4d42b0cd652433b2f12715

res/xml/display_settings.xml

@@ -27,10 +27,6 @@
                 android:title="@string/wallpaper_settings_title"
                 android:fragment="com.android.settings.WallpaperTypeSettings" />
 
-        <CheckBoxPreference
-            android:key="accelerometer"
-            android:title="@string/accelerometer_title"/>
-
         <ListPreference
                 android:key="screen_timeout"
                 android:title="@string/screen_timeout"

src/com/android/settings/DisplaySettings.java

@@ -49,14 +49,12 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     private static final int FALLBACK_SCREEN_TIMEOUT_VALUE = 30000;
 
     private static final String KEY_SCREEN_TIMEOUT = "screen_timeout";
-    private static final String KEY_ACCELEROMETER = "accelerometer";
     private static final String KEY_FONT_SIZE = "font_size";
     private static final String KEY_NOTIFICATION_PULSE = "notification_pulse";
     private static final String KEY_SCREEN_SAVER = "screensaver";
 
     private static final int DLG_GLOBAL_CHANGE_WARNING = 1;
 
-    private CheckBoxPreference mAccelerometer;
     private WarnedListPreference mFontSizePref;
     private CheckBoxPreference mNotificationPulse;
 
@@ -65,14 +63,6 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     private ListPreference mScreenTimeoutPreference;
     private Preference mScreenSaverPreference;
 
-    private final RotationPolicy.RotationPolicyListener mRotationPolicyListener =
-            new RotationPolicy.RotationPolicyListener() {
-        @Override
-        public void onChange() {
-            updateAccelerometerRotationCheckbox();
-        }
-    };
-
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -80,16 +70,6 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
 
         addPreferencesFromResource(R.xml.display_settings);
 
-        mAccelerometer = (CheckBoxPreference) findPreference(KEY_ACCELEROMETER);
-        mAccelerometer.setPersistent(false);
-        if (!RotationPolicy.isRotationSupported(getActivity())
-                || RotationPolicy.isRotationLockToggleSupported(getActivity())) {
-            // If rotation lock is supported, then we do not provide this option in
-            // Display settings.  However, is still available in Accessibility settings,
-            // if the device supports rotation.
-            getPreferenceScreen().removePreference(mAccelerometer);
-        }
-
         mScreenSaverPreference = findPreference(KEY_SCREEN_SAVER);
         if (mScreenSaverPreference != null
                 && getResources().getBoolean(
@@ -226,20 +206,9 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     public void onResume() {
         super.onResume();
 
-        RotationPolicy.registerRotationPolicyListener(getActivity(),
-                mRotationPolicyListener);
-
         updateState();
     }
 
-    @Override
-    public void onPause() {
-        super.onPause();
-
-        RotationPolicy.unregisterRotationPolicyListener(getActivity(),
-                mRotationPolicyListener);
-    }
-
     @Override
     public Dialog onCreateDialog(int dialogId) {
         if (dialogId == DLG_GLOBAL_CHANGE_WARNING) {
@@ -255,7 +224,6 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     }
 
     private void updateState() {
-        updateAccelerometerRotationCheckbox();
         readFontSizePreference(mFontSizePref);
         updateScreenSaverSummary();
     }
@@ -267,12 +235,6 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
         }
     }
 
-    private void updateAccelerometerRotationCheckbox() {
-        if (getActivity() == null) return;
-
-        mAccelerometer.setChecked(!RotationPolicy.isRotationLocked(getActivity()));
-    }
-
     public void writeFontSizePreference(Object objValue) {
         try {
             mCurConfig.fontScale = Float.parseFloat(objValue.toString());
@@ -284,10 +246,7 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
 
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
-        if (preference == mAccelerometer) {
+        if (preference == mNotificationPulse) {
-            RotationPolicy.setRotationLockForAccessibility(
-                    getActivity(), !mAccelerometer.isChecked());
-        } else if (preference == mNotificationPulse) {
             boolean value = mNotificationPulse.isChecked();
             Settings.System.putInt(getContentResolver(), Settings.System.NOTIFICATION_LIGHT_PULSE,
                     value ? 1 : 0);