Use TaskScheduler instead of WorkerPool in client_cert_resolver.cc.

chromeos/network/auto_connect_handler_unittest.cc

Index: chromeos/network/auto_connect_handler_unittest.cc
diff --git a/chromeos/network/auto_connect_handler_unittest.cc b/chromeos/network/auto_connect_handler_unittest.cc
index acbcbcdeff77493834dc8614de0ab12ded392ffa..a2f370bea29d34ce4e24ef40d51207cb38901738 100644
--- a/chromeos/network/auto_connect_handler_unittest.cc
+++ b/chromeos/network/auto_connect_handler_unittest.cc
@@ -15,6 +15,7 @@
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/stringprintf.h"
+#include "base/test/scoped_task_scheduler.h"
 #include "chromeos/cert_loader.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/shill_device_client.h"
@@ -77,7 +78,9 @@ class TestCertResolveObserver : public ClientCertResolver::Observer {
 class AutoConnectHandlerTest : public testing::Test {
  public:
   AutoConnectHandlerTest()
-      : test_manager_client_(nullptr), test_service_client_(nullptr) {}
+      : test_manager_client_(nullptr),
+        test_service_client_(nullptr),
+        scoped_task_scheduler_(&message_loop_) {}
 
   void SetUp() override {
     ASSERT_TRUE(test_nssdb_.is_open());
@@ -127,8 +130,6 @@ class AutoConnectHandlerTest : public testing::Test {
     client_cert_resolver_.reset(new ClientCertResolver());
     client_cert_resolver_->Init(network_state_handler_.get(),
                                 managed_config_handler_.get());
-    client_cert_resolver_->SetSlowTaskRunnerForTest(
-        message_loop_.task_runner());
 
     auto_connect_handler_.reset(new AutoConnectHandler());
     auto_connect_handler_->Init(client_cert_resolver_.get(),
@@ -253,6 +254,8 @@ class AutoConnectHandlerTest : public testing::Test {
   base::MessageLoopForUI message_loop_;
 
  private:
+  base::test::ScopedTaskScheduler scoped_task_scheduler_;
+
   DISALLOW_COPY_AND_ASSIGN(AutoConnectHandlerTest);
 };