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

third_party/WebKit/LayoutTests/bluetooth/resources/bluetooth-helpers.js

 'use strict';
 
+// Bluetooth UUID constants:
+// Services:
+var blacklist_test_service_uuid = "611c954a-263b-4f4a-aab6-01ddb953f985";
+// Characteristics:
+var blacklist_exclude_reads_characteristic_uuid =
+  "bad1c9a2-9a5b-4015-8b60-1579bbbf2135";
+
 // Sometimes we need to test that using either the name, alias, or UUID
 // produces the same result. The following objects help us do that.
 var generic_access = {
   alias: 0x1800,
   name: 'generic_access',
   uuid: '00001800-0000-1000-8000-00805f9b34fb'
 };
 var device_name = {
   alias: 0x2a00,
   name: 'gap.device_name',
@@ skipping 288 matching lines @@
   // interact with the device. So before we clean up the browser data
   // we change the visibility which results in all devices disconnecing.
   // TODO(ortuno): Remove setPageVisibility hack. In the future, the browser
   // will notify the renderer that the device disconnected so we won't need
   // this hack.
   // https://crbug.com/581855
   testRunner.setPageVisibility('hidden');
   testRunner.setPageVisibility('visible');
   testRunner.setBluetoothMockDataSet('');
 });