Revert of bluetooth: Move testing IPC from BluetoothDispatcher to BlinkTestRunner

content/child/bluetooth/web_bluetooth_impl.cc

Index: content/child/bluetooth/web_bluetooth_impl.cc
diff --git a/content/child/bluetooth/web_bluetooth_impl.cc b/content/child/bluetooth/web_bluetooth_impl.cc
index 46a08e2c9f30f21f3f21073734deaf89084caf8b..d8b5813be6d01444e96eea8623980879b0ef7434 100644
--- a/content/child/bluetooth/web_bluetooth_impl.cc
+++ b/content/child/bluetooth/web_bluetooth_impl.cc
@@ -26,6 +26,11 @@
   GetDispatcher()->connectGATT(device_instance_id, callbacks);
 }
 
+void WebBluetoothImpl::SetBluetoothMockDataSetForTesting(
+    const std::string& name) {
+  GetDispatcher()->SetBluetoothMockDataSetForTesting(name);
+}
+
 BluetoothDispatcher* WebBluetoothImpl::GetDispatcher() {
   return BluetoothDispatcher::GetOrCreateThreadSpecificInstance(
       thread_safe_sender_.get());