[Autofill] Remove direct use of base::Time::Now() in Autofill

components/autofill/core/browser/test_autofill_clock.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_AUTOFILL_CORE_BROWSER_TEST_AUTOFILL_CLOCK_H_
+#define COMPONENTS_AUTOFILL_CORE_BROWSER_TEST_AUTOFILL_CLOCK_H_
+
+#include <memory>
+
+#include "base/macros.h"
+
+namespace base {
+class SimpleTestClock;
+class Time;
+}  // namespace base
+
+namespace autofill {
+
+// Handles the customization of the time in tests. Replaces the clock in
+// AutofillClock with a test version that can be manipulated from this class.
+// Automatically resets a normal clock to AutofillClock when this gets
+// destroyed,
+class TestAutofillClock {
+ public:
+  TestAutofillClock();
+  ~TestAutofillClock();
+
+  // Set the time to be returned from AutofillClock::Now() calls.
+  void SetNow(base::Time now);
+
+ private:
+  base::SimpleTestClock* test_clock_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestAutofillClock);
+};
+
+}  // namespace autofill
+
+#endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_TEST_AUTOFILL_CLOCK_H_