Remove raw base::DictionaryValue::Set in //content

content/renderer/media/peer_connection_tracker.cc

Index: content/renderer/media/peer_connection_tracker.cc
diff --git a/content/renderer/media/peer_connection_tracker.cc b/content/renderer/media/peer_connection_tracker.cc
index b68adf40b7e0d17e6495a79788f0cea8db511d44..40cb37c071a2f42e34f458f3dc11c4342c01f515 100644
--- a/content/renderer/media/peer_connection_tracker.cc
+++ b/content/renderer/media/peer_connection_tracker.cc
@@ -10,9 +10,11 @@
 #include <memory>
 #include <utility>
 
+#include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "base/values.h"
 #include "content/common/media/peer_connection_tracker_messages.h"
 #include "content/renderer/media/rtc_peer_connection_handler.h"
 #include "content/renderer/render_thread_impl.h"
@@ -244,19 +246,15 @@ static const char* GetIceGatheringStateString(
 }
 
 // Builds a DictionaryValue from the StatsReport.
-// The caller takes the ownership of the returned value.
 // Note:
 // The format must be consistent with what webrtc_internals.js expects.
 // If you change it here, you must change webrtc_internals.js as well.
-static base::DictionaryValue* GetDictValueStats(const StatsReport& report) {
+static std::unique_ptr<base::DictionaryValue> GetDictValueStats(
+    const StatsReport& report) {
   if (report.values().empty())
     return NULL;
 
-  base::DictionaryValue* dict = new base::DictionaryValue();
-  dict->SetDouble("timestamp", report.timestamp());
-
-  base::ListValue* values = new base::ListValue();
-  dict->Set("values", values);
+  auto values = base::MakeUnique<base::ListValue>();
 
   for (const auto& v : report.values()) {
     const StatsReport::ValuePtr& value = v.second;
@@ -286,6 +284,10 @@ static base::DictionaryValue* GetDictValueStats(const StatsReport& report) {
     }
   }
 
+  auto dict = base::MakeUnique<base::DictionaryValue>();
+  dict->SetDouble("timestamp", report.timestamp());
+  dict->Set("values", std::move(values));
+
   return dict;
 }
 
@@ -293,17 +295,15 @@ static base::DictionaryValue* GetDictValueStats(const StatsReport& report) {
 // The caller takes the ownership of the returned value.
 static std::unique_ptr<base::DictionaryValue> GetDictValue(
     const StatsReport& report) {
-  std::unique_ptr<base::DictionaryValue> stats, result;
-
-  stats.reset(GetDictValueStats(report));
+  std::unique_ptr<base::DictionaryValue> stats = GetDictValueStats(report);
   if (!stats)
     return NULL;
 
-  result.reset(new base::DictionaryValue());
   // Note:
   // The format must be consistent with what webrtc_internals.js expects.
   // If you change it here, you must change webrtc_internals.js as well.
-  result->Set("stats", stats.release());
+  auto result = base::MakeUnique<base::DictionaryValue>();
+  result->Set("stats", std::move(stats));
   result->SetString("id", report.id()->ToString());
   result->SetString("type", report.TypeToString());