Privatize StrongBinding lifetime management

content/shell/browser/layout_test/layout_test_bluetooth_fake_adapter_setter_impl.cc

Index: content/shell/browser/layout_test/layout_test_bluetooth_fake_adapter_setter_impl.cc
diff --git a/content/shell/browser/layout_test/layout_test_bluetooth_fake_adapter_setter_impl.cc b/content/shell/browser/layout_test/layout_test_bluetooth_fake_adapter_setter_impl.cc
index 8713514fb84cb1d0a16998fb188a6ae07c412464..31f6fc1fcec65e59662e12079de60f0321aaf8f6 100644
--- a/content/shell/browser/layout_test/layout_test_bluetooth_fake_adapter_setter_impl.cc
+++ b/content/shell/browser/layout_test/layout_test_bluetooth_fake_adapter_setter_impl.cc
@@ -9,23 +9,24 @@
 #include "content/public/test/layouttest_support.h"
 #include "content/shell/browser/layout_test/layout_test_bluetooth_adapter_provider.h"
 #include "device/bluetooth/bluetooth_adapter_factory_wrapper.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace content {
 
-// static
-void LayoutTestBluetoothFakeAdapterSetterImpl::Create(
-    mojom::LayoutTestBluetoothFakeAdapterSetterRequest request) {
-  new LayoutTestBluetoothFakeAdapterSetterImpl(std::move(request));
-}
-
 LayoutTestBluetoothFakeAdapterSetterImpl::
-    LayoutTestBluetoothFakeAdapterSetterImpl(
-        mojom::LayoutTestBluetoothFakeAdapterSetterRequest request)
-    : binding_(this, std::move(request)) {}
+    LayoutTestBluetoothFakeAdapterSetterImpl() {}
 
 LayoutTestBluetoothFakeAdapterSetterImpl::
     ~LayoutTestBluetoothFakeAdapterSetterImpl() {}
 
+// static
+void LayoutTestBluetoothFakeAdapterSetterImpl::Create(
+    mojom::LayoutTestBluetoothFakeAdapterSetterRequest request) {
+  mojo::MakeStrongBinding(
+      base::MakeUnique<LayoutTestBluetoothFakeAdapterSetterImpl>(),
+      std::move(request));
+}
+
 void LayoutTestBluetoothFakeAdapterSetterImpl::Set(
     const std::string& adapter_name,
     const SetCallback& callback) {