BLE peripheral mode (4/4): Settings change for advertising preference.

Change-Id: I5721f136267fe25e55f764bb4a6c53acd45b318b

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

@@ -118,6 +118,9 @@ public final class LocalBluetoothAdapter {
         return mAdapter.isDiscovering();
     }
 
+    boolean isAdvertising() {
+        return mAdapter.isAdvertising();
+    }
     boolean isEnabled() {
         return mAdapter.isEnabled();
     }
@@ -126,6 +129,14 @@ public final class LocalBluetoothAdapter {
         mAdapter.setDiscoverableTimeout(timeout);
     }
 
+    boolean startAdvertising() {
+      return mAdapter.startAdvertising();
+    }
+
+    boolean stopAdvertising() {
+      return mAdapter.stopAdvertisting();
+    }
+
     void setName(String name) {
         mAdapter.setName(name);
     }