Implement new volume UI design.

- Add segmented zen-mode picker to the rocker UI.
- Add a new "no interruptions" value to the zen setting.
- Implement expandable condition subpanel on the rocker UI.
- Remove the old circle&slash icons.
- Suppress alarm sounds if in "no interruptions" mode.
- Add warning re: alarms to the condition UI.
- Allow rocker UI to display over the keyguard.
- Remove Notifications QS tile.
- Realign volume rocker to the top of the screen.
- Add support for new "days" sleepMode.
- New icon policy rules for "volume" slot.
- New important icon (star).

Associated Settings change:
  I6ed56791784968adfbd684f490dbbebed285a2dd

Bug:15831713
Change-Id: I35afe38646f04d2ba0dbac11c2c6356120a33694
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
index b6f5ae0..186b618 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
@@ -24,6 +24,7 @@
 import android.content.IntentFilter;
 import android.media.AudioManager;
 import android.os.Handler;
+import android.provider.Settings.Global;
 import android.util.Log;
 
 import com.android.internal.telephony.IccCardConstants;
@@ -64,7 +65,7 @@
     private boolean mVolumeVisible;
 
     // zen mode
-    private boolean mZen;
+    private int mZen;
 
     // bluetooth device status
     private boolean mBluetoothEnabled = false;
@@ -155,7 +156,7 @@
         updateVolume();
     }
 
-    public void setZenMode(boolean zen) {
+    public void setZenMode(int zen) {
         mZen = zen;
         updateVolume();
     }
@@ -202,21 +203,21 @@
     private final void updateVolume() {
         AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
         final int ringerMode = audioManager.getRingerMode();
-        final boolean visible = ringerMode == AudioManager.RINGER_MODE_SILENT ||
-                ringerMode == AudioManager.RINGER_MODE_VIBRATE ||
-                mZen;
-
-        final int iconId;
+        int iconId = 0;
         String contentDescription = null;
-        if (mZen) {
-            iconId = R.drawable.stat_sys_ringer_zen;
-            contentDescription = mContext.getString(R.string.zen_mode_title);
+        boolean visible = false;
+        if (ringerMode == AudioManager.RINGER_MODE_SILENT) {
+            visible = true;
+            iconId = R.drawable.stat_sys_ringer_silent;
+            contentDescription = mContext.getString(R.string.accessibility_ringer_silent);
+        } else if (mZen == Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS) {
+            visible = true;
+            iconId = R.drawable.stat_sys_zen_important;
+            contentDescription = mContext.getString(R.string.zen_important_interruptions);
         } else if (ringerMode == AudioManager.RINGER_MODE_VIBRATE) {
+            visible = true;
             iconId = R.drawable.stat_sys_ringer_vibrate;
             contentDescription = mContext.getString(R.string.accessibility_ringer_vibrate);
-        } else {
-            iconId =  R.drawable.stat_sys_ringer_silent;
-            contentDescription = mContext.getString(R.string.accessibility_ringer_silent);
         }
 
         if (visible) {