bluetooth: Add Web Bluetooth blacklist checks to readValue & writeValue.

content/browser/bluetooth/bluetooth_dispatcher_host.cc

Index: content/browser/bluetooth/bluetooth_dispatcher_host.cc
diff --git a/content/browser/bluetooth/bluetooth_dispatcher_host.cc b/content/browser/bluetooth/bluetooth_dispatcher_host.cc
index 22ad2c63fd955f1db5bb3032a2cc1020f01c2ff4..f783d31e6a768667f3bb4e1c466d1b382e1ad99f 100644
--- a/content/browser/bluetooth/bluetooth_dispatcher_host.cc
+++ b/content/browser/bluetooth/bluetooth_dispatcher_host.cc
@@ -866,6 +866,14 @@ void BluetoothDispatcherHost::OnReadValue(
     return;
   }
 
+  if (BluetoothBlacklist::Get().IsExcludedFromReads(
+          query_result.characteristic->GetUUID())) {
+    RecordCharacteristicReadValueOutcome(UMAGATTOperationOutcome::BLACKLISTED);
+    Send(new BluetoothMsg_ReadCharacteristicValueError(
+        thread_id, request_id, WebBluetoothError::BlacklistedRead));
+    return;
+  }
+
   query_result.characteristic->ReadRemoteCharacteristic(
       base::Bind(&BluetoothDispatcherHost::OnCharacteristicValueRead,
                  weak_ptr_on_ui_thread_, thread_id, request_id),
@@ -908,6 +916,14 @@ void BluetoothDispatcherHost::OnWriteValue(
     return;
   }
 
+  if (BluetoothBlacklist::Get().IsExcludedFromWrites(
+          query_result.characteristic->GetUUID())) {
+    RecordCharacteristicWriteValueOutcome(UMAGATTOperationOutcome::BLACKLISTED);
+    Send(new BluetoothMsg_WriteCharacteristicValueError(
+        thread_id, request_id, WebBluetoothError::BlacklistedWrite));
+    return;
+  }
+
   query_result.characteristic->WriteRemoteCharacteristic(
       value, base::Bind(&BluetoothDispatcherHost::OnWriteValueSuccess,
                         weak_ptr_on_ui_thread_, thread_id, request_id),