Convert //base to use std::unique_ptr

base/memory/memory_pressure_monitor_chromeos_unittest.cc

Index: base/memory/memory_pressure_monitor_chromeos_unittest.cc
diff --git a/base/memory/memory_pressure_monitor_chromeos_unittest.cc b/base/memory/memory_pressure_monitor_chromeos_unittest.cc
index a82cef4b604a8518160a63de0e5f9395448b7f08..4333cd990e9f0d99bd721a19751d004b6a75122b 100644
--- a/base/memory/memory_pressure_monitor_chromeos_unittest.cc
+++ b/base/memory/memory_pressure_monitor_chromeos_unittest.cc
@@ -74,9 +74,9 @@ class TestMemoryPressureMonitor : public MemoryPressureMonitor {
 // for the correct behavior on event reposting as well as state updates.
 TEST(ChromeOSMemoryPressureMonitorTest, CheckMemoryPressure) {
   base::MessageLoopForUI message_loop;
-  scoped_ptr<TestMemoryPressureMonitor> monitor(
+  std::unique_ptr<TestMemoryPressureMonitor> monitor(
       new TestMemoryPressureMonitor);
-  scoped_ptr<MemoryPressureListener> listener(
+  std::unique_ptr<MemoryPressureListener> listener(
       new MemoryPressureListener(base::Bind(&OnMemoryPressure)));
   // Checking the memory pressure while 0% are used should not produce any
   // events.