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

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

Index: device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothRemoteGattCharacteristic.java
diff --git a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothRemoteGattCharacteristic.java b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothRemoteGattCharacteristic.java
index ea0a4dc75e16e83aa2bac105c6d28a49cfb069e8..1507d7f29c2206cda4f84ea52d27213ea258727e 100644
--- a/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothRemoteGattCharacteristic.java
+++ b/device/bluetooth/android/java/src/org/chromium/device/bluetooth/ChromeBluetoothRemoteGattCharacteristic.java
@@ -32,6 +32,7 @@ final class ChromeBluetoothRemoteGattCharacteristic {
     final Wrappers.BluetoothGattCharacteristicWrapper mCharacteristic;
     final String mInstanceId;
     final ChromeBluetoothDevice mChromeDevice;
+    private boolean mPendingOnStartNotifySession = false;
 
     private ChromeBluetoothRemoteGattCharacteristic(
             long nativeBluetoothRemoteGattCharacteristicAndroid,
@@ -69,6 +70,22 @@ final class ChromeBluetoothRemoteGattCharacteristic {
         }
     }
 
+    boolean onStartNotifySession(int status) {
+        if (!mPendingOnStartNotifySession) {
+            return false;
+        }
+
+        mPendingOnStartNotifySession = false;
+
+        Log.i(TAG, "onStartNotifySession status:%d==%s", status,
+                status == android.bluetooth.BluetoothGatt.GATT_SUCCESS ? "OK" : "Error");
+        if (mNativeBluetoothRemoteGattCharacteristicAndroid != 0) {
+            nativeOnStartNotifySession(mNativeBluetoothRemoteGattCharacteristicAndroid, status);
+        }
+
+        return true;
+    }
+
     void onCharacteristicRead(int status) {
         Log.i(TAG, "onCharacteristicRead status:%d==%s", status,
                 status == android.bluetooth.BluetoothGatt.GATT_SUCCESS ? "OK" : "Error");
@@ -157,6 +174,8 @@ final class ChromeBluetoothRemoteGattCharacteristic {
             return false;
         }
 
+        mPendingOnStartNotifySession = true;
+
         return true;
     }
 
@@ -205,6 +224,10 @@ final class ChromeBluetoothRemoteGattCharacteristic {
     // Binds to BluetoothRemoteGattCharacteristicAndroid::OnChanged.
     native void nativeOnChanged(long nativeBluetoothRemoteGattCharacteristicAndroid, byte[] value);
 
+    // Binds to BluetoothRemoteGattCharacteristicAndroid::OnStartNotifySession.
+    native void nativeOnStartNotifySession(
+            long nativeBluetoothRemoteGattCharacteristicAndroid, int status);
+
     // Binds to BluetoothRemoteGattCharacteristicAndroid::OnRead.
     native void nativeOnRead(
             long nativeBluetoothRemoteGattCharacteristicAndroid, int status, byte[] value);