Implement BT settings functionality for new UI.

- Removed context menu logic for long press (no longer used).
- Converted device picker to run in its own Activity, using a dialog
  theme on large screen devices and full-screen on phones.
- Removed unused resources.
- Add device to "Paired devices" list when pairing is initiated by the
  remote device.
- Return to Bluetooth settings pane after successfully pairing a new
  device from the "Find nearby device" pane.
- Add support for renaming devices (TODO: persist the custom name and
  update the "bread crumb" in the action bar to the new device name).
- Add support for incoming file transfer and auto connect checkboxes
  in DeviceProfilesSettings.
- Show available and connected device profiles as icons instead of
  summary text. Available but disconnected profiles are drawn in gray.
- Fixed bluetooth_notif_message to include the device name as a parameter
  instead of appending the name to the end of the localized string.
- Changed some fields from private to package scope for more efficient
  access from inner classes.

Bug: 3137982

Change-Id: Ic2d6ee5be60c9c5b3f3a8a58846d58efedfa5c93

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

@@ -165,6 +165,15 @@ public class CachedBluetoothDeviceManager {
         }
     }
 
+    private void dispatchDeviceBondStateChanged(
+            CachedBluetoothDevice cachedDevice, int bondState) {
+        synchronized (mCallbacks) {
+            for (Callback callback : mCallbacks) {
+                callback.onDeviceBondStateChanged(cachedDevice, bondState);
+            }
+        }
+    }
+
     public synchronized void onBondingStateChanged(BluetoothDevice device, int bondState) {
         CachedBluetoothDevice cachedDevice = findDevice(device);
         if (cachedDevice == null) {
@@ -176,11 +185,12 @@ public class CachedBluetoothDeviceManager {
             cachedDevice = findDevice(device);
             if (cachedDevice == null) {
                 Log.e(TAG, "Got bonding state changed for " + device +
-                        "but device not added in cache");
+                        ", but device not added in cache.");
                 return;
             }
         }
 
+        dispatchDeviceBondStateChanged(cachedDevice, bondState);
         cachedDevice.onBondingStateChanged(bondState);
     }