bluetooth: android: Implement Descriptor Write as needed for notifications.

device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.java

Index: device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.java
diff --git a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.java b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.java
index ea78782289a1b4175dd618246e4a5d075fe54241..d53e233a287494ab8e05cb6583106e8b51f2bd6e 100644
--- a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.java
+++ b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/Wrappers.java
@@ -330,6 +330,10 @@ class Wrappers {
         boolean writeCharacteristic(BluetoothGattCharacteristicWrapper characteristic) {
             return mGatt.writeCharacteristic(characteristic.mCharacteristic);
         }
+
+        boolean writeDescriptor(BluetoothGattDescriptorWrapper descriptor) {
+            return mGatt.writeDescriptor(descriptor.mDescriptor);
+        }
     }
 
     /**
@@ -499,5 +503,13 @@ class Wrappers {
         public UUID getUuid() {
             return mDescriptor.getUuid();
         }
+
+        public byte[] getValue() {
+            return mDescriptor.getValue();
+        }
+
+        public boolean setValue(byte[] value) {
+            return mDescriptor.setValue(value);
+        }
     }
 }