Use WM APIs to change rotation preference.

Bug: 5371750

Changing the system setting directly results in inconsistent
behavior among the three different places where "auto-rotate"
settings appear in the UI.  Use the WM APIs instead.

Change-Id: I1a8239af66b1cc3aeec8310383e72fc96c878d73

src/com/android/settings/DisplaySettings.java

@@ -28,6 +28,7 @@ import android.database.ContentObserver;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.RemoteException;
+import android.os.ServiceManager;
 import android.preference.CheckBoxPreference;
 import android.preference.ListPreference;
 import android.preference.Preference;
@@ -35,6 +36,8 @@ import android.preference.PreferenceScreen;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
 import android.util.Log;
+import android.view.IWindowManager;
+import android.view.Surface;
 
 import java.util.ArrayList;
 
@@ -230,9 +233,17 @@ public class DisplaySettings extends SettingsPreferenceFragment implements
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
         if (preference == mAccelerometer) {
-            Settings.System.putInt(getContentResolver(),
-                    Settings.System.ACCELEROMETER_ROTATION,
-                    mAccelerometer.isChecked() ? 1 : 0);
+            try {
+                IWindowManager wm = IWindowManager.Stub.asInterface(
+                        ServiceManager.getService(Context.WINDOW_SERVICE));
+                if (mAccelerometer.isChecked()) {
+                    wm.thawRotation();
+                } else {
+                    wm.freezeRotation(Surface.ROTATION_0);
+                }
+            } catch (RemoteException exc) {
+                Log.w(TAG, "Unable to save auto-rotate setting");
+            }
         } else if (preference == mNotificationPulse) {
             boolean value = mNotificationPulse.isChecked();
             Settings.System.putInt(getContentResolver(), Settings.System.NOTIFICATION_LIGHT_PULSE,