Convert //base to use std::unique_ptr

base/test/test_pending_task_unittest.cc

Index: base/test/test_pending_task_unittest.cc
diff --git a/base/test/test_pending_task_unittest.cc b/base/test/test_pending_task_unittest.cc
index 39a6a4350a538deb79386f4c5d88352a95b7ee61..6e01c8c66a65d57c67f92fea7feb2136780fd61f 100644
--- a/base/test/test_pending_task_unittest.cc
+++ b/base/test/test_pending_task_unittest.cc
@@ -19,7 +19,7 @@ TEST(TestPendingTaskTest, TraceSupport) {
   TRACE_EVENT1("test", "TestPendingTask::TraceSupport", "task", task.AsValue());
 
   // Just a basic check that the trace output has *something* in it.
-  scoped_ptr<base::trace_event::ConvertableToTraceFormat> task_value(
+  std::unique_ptr<base::trace_event::ConvertableToTraceFormat> task_value(
       task.AsValue());
   EXPECT_THAT(task_value->ToString(), ::testing::HasSubstr("post_time"));
 }