Convert //base to use std::unique_ptr

base/trace_event/trace_config_unittest.cc

Index: base/trace_event/trace_config_unittest.cc
diff --git a/base/trace_event/trace_config_unittest.cc b/base/trace_event/trace_config_unittest.cc
index 1b49fdc18925442ca162e4fc9937f3d683ef1db0..1fb41f86fb9eef43d13ac122c7bff135ac8d3e04 100644
--- a/base/trace_event/trace_config_unittest.cc
+++ b/base/trace_event/trace_config_unittest.cc
@@ -292,7 +292,8 @@ TEST(TraceConfigTest, TraceConfigFromDict) {
   EXPECT_FALSE(tc.IsArgumentFilterEnabled());
   EXPECT_STREQ("", tc.ToCategoryFilterString().c_str());
 
-  scoped_ptr<Value> default_value(JSONReader::Read(kDefaultTraceConfigString));
+  std::unique_ptr<Value> default_value(
+      JSONReader::Read(kDefaultTraceConfigString));
   DCHECK(default_value);
   const DictionaryValue* default_dict = nullptr;
   bool is_dict = default_value->GetAsDictionary(&default_dict);
@@ -305,7 +306,8 @@ TEST(TraceConfigTest, TraceConfigFromDict) {
   EXPECT_FALSE(default_tc.IsArgumentFilterEnabled());
   EXPECT_STREQ("-*Debug,-*Test", default_tc.ToCategoryFilterString().c_str());
 
-  scoped_ptr<Value> custom_value(JSONReader::Read(kCustomTraceConfigString));
+  std::unique_ptr<Value> custom_value(
+      JSONReader::Read(kCustomTraceConfigString));
   DCHECK(custom_value);
   const DictionaryValue* custom_dict = nullptr;
   is_dict = custom_value->GetAsDictionary(&custom_dict);