Privatize StrongBinding lifetime management

services/ui/ime/test_ime_driver/test_ime_driver.cc

Index: services/ui/ime/test_ime_driver/test_ime_driver.cc
diff --git a/services/ui/ime/test_ime_driver/test_ime_driver.cc b/services/ui/ime/test_ime_driver/test_ime_driver.cc
index dbf01ef0f9f4b541fb03884df036637990429f4f..97aa702755192b7d43b3c4250efcdd2705e60522 100644
--- a/services/ui/ime/test_ime_driver/test_ime_driver.cc
+++ b/services/ui/ime/test_ime_driver/test_ime_driver.cc
@@ -40,8 +40,7 @@ class TestInputMethod : public mojom::InputMethod {
   DISALLOW_COPY_AND_ASSIGN(TestInputMethod);
 };
 
-TestIMEDriver::TestIMEDriver(mojom::IMEDriverRequest request)
-    : driver_binding_(this, std::move(request)) {}
+TestIMEDriver::TestIMEDriver() {}
 
 TestIMEDriver::~TestIMEDriver() {}