bluetooth: android: Confirm the notify session after the descriptor has been written.

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

Index: device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
diff --git a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
index 88e290f41d7fb6d751fbce861735f768dfecd92a..e4c11ebf708390a82ee88e7d1b0129d215ef9dc9 100644
--- a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
+++ b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothDevice.java
@@ -18,6 +18,7 @@ import org.chromium.base.annotations.JNINamespace;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
+import java.util.UUID;
 
 /**
  * Exposes android.bluetooth.BluetoothDevice as necessary for C++
@@ -255,6 +256,51 @@ final class ChromeBluetoothDevice {
                 }
             });
         }
+
+        @Override
+        public void onDescriptorRead(
+                final Wrappers.BluetoothGattDescriptorWrapper descriptor, final int status) {
+            ThreadUtils.runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    ChromeBluetoothRemoteGattDescriptor chromeDescriptor =
+                            mWrapperToChromeDescriptorsMap.get(descriptor);
+                    if (chromeDescriptor == null) {
+                        Log.v(TAG, "onDescriptorRead when chromeDescriptor == null.");
+                    } else {
+                        chromeDescriptor.onDescriptorRead(status);
+                    }
+                }
+            });
+        }
+
+        @Override
+        public void onDescriptorWrite(
+                final Wrappers.BluetoothGattDescriptorWrapper descriptor, final int status) {
+            ThreadUtils.runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    if (descriptor.getUuid().equals(
+                                UUID.fromString("00002902-0000-1000-8000-00805F9B34FB"))) {
+                        ChromeBluetoothRemoteGattCharacteristic chromeCharacteristic =
+                                mWrapperToChromeCharacteristicsMap.get(
+                                        descriptor.getCharacteristic());
+                        if (chromeCharacteristic != null
+                                && chromeCharacteristic.onStartNotifySession(status)) {
+                            return;
+                        }
+                    }
+
+                    ChromeBluetoothRemoteGattDescriptor chromeDescriptor =
+                            mWrapperToChromeDescriptorsMap.get(descriptor);
+                    if (chromeDescriptor == null) {
+                        Log.v(TAG, "onDescriptorWrite when chromeDescriptor == null.");
+                    } else {
+                        chromeDescriptor.onDescriptorWrite(status);
+                    }
+                }
+            });
+        }
     }
 
     // ---------------------------------------------------------------------------------------------