Add UMA for the number of devices in the chooser when a device is paired

content/shell/browser/layout_test/blink_test_controller.cc

Index: content/shell/browser/layout_test/blink_test_controller.cc
diff --git a/content/shell/browser/layout_test/blink_test_controller.cc b/content/shell/browser/layout_test/blink_test_controller.cc
index bf4e545828ba743c3941d8f95f2ac4eecd5bcef9..60b3759d5062eb5cc69ede198afa35b762df47ef 100644
--- a/content/shell/browser/layout_test/blink_test_controller.cc
+++ b/content/shell/browser/layout_test/blink_test_controller.cc
@@ -404,10 +404,11 @@ bool BlinkTestController::IsMainWindow(WebContents* web_contents) const {
 
 std::unique_ptr<BluetoothChooser> BlinkTestController::RunBluetoothChooser(
     RenderFrameHost* frame,
-    const BluetoothChooser::EventHandler& event_handler) {
+    const BluetoothChooser::EventHandler& event_handler,
+    bool accept_all_devices) {
   if (bluetooth_chooser_factory_) {
-    return bluetooth_chooser_factory_->RunBluetoothChooser(frame,
-                                                           event_handler);
+    return bluetooth_chooser_factory_->RunBluetoothChooser(frame, event_handler,
+                                                           accept_all_devices);
   }
   return base::MakeUnique<LayoutTestFirstDeviceBluetoothChooser>(event_handler);
 }