diff --git a/atom/browser/common_web_contents_delegate.cc b/atom/browser/common_web_contents_delegate.cc
index cebede6e59..a1fad7e8e8 100644
--- a/atom/browser/common_web_contents_delegate.cc
+++ b/atom/browser/common_web_contents_delegate.cc
@@ -14,6 +14,7 @@
 #include "atom/browser/web_dialog_helper.h"
 #include "atom/common/atom_constants.h"
 #include "base/files/file_util.h"
+#include "base/memory/ptr_util.h"
 #include "chrome/browser/printing/print_preview_message_handler.h"
 #include "chrome/browser/printing/print_view_manager_basic.h"
 #include "chrome/browser/ssl/security_state_tab_helper.h"
@@ -384,7 +385,7 @@ void CommonWebContentsDelegate::DevToolsAddFileSystem(
   auto pref_service = GetPrefService(GetDevToolsWebContents());
   DictionaryPrefUpdate update(pref_service, prefs::kDevToolsFileSystemPaths);
   update.Get()->SetWithoutPathExpansion(
-      path.AsUTF8Unsafe(), base::Value::CreateNullValue());
+      path.AsUTF8Unsafe(), base::MakeUnique<base::Value>());
 
   web_contents_->CallClientFunction("DevToolsAPI.fileSystemAdded",
                                     file_system_value.get(),
diff --git a/atom/browser/mac/dict_util.mm b/atom/browser/mac/dict_util.mm
index 136ec1aba5..32141cdeb5 100644
--- a/atom/browser/mac/dict_util.mm
+++ b/atom/browser/mac/dict_util.mm
@@ -5,6 +5,7 @@
 #include "atom/browser/mac/dict_util.h"
 
 #include "base/json/json_writer.h"
+#include "base/memory/ptr_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/values.h"
 
@@ -45,14 +46,14 @@ std::unique_ptr<base::ListValue> NSArrayToListValue(NSArray* arr) {
       if (sub_arr)
         result->Append(std::move(sub_arr));
       else
-        result->Append(base::Value::CreateNullValue());
+        result->Append(base::MakeUnique<base::Value>());
     } else if ([value isKindOfClass:[NSDictionary class]]) {
       std::unique_ptr<base::DictionaryValue> sub_dict =
           NSDictionaryToDictionaryValue(value);
       if (sub_dict)
         result->Append(std::move(sub_dict));
       else
-        result->Append(base::Value::CreateNullValue());
+        result->Append(base::MakeUnique<base::Value>());
     } else {
       result->AppendString(base::SysNSStringToUTF8([value description]));
     }
@@ -104,7 +105,7 @@ std::unique_ptr<base::DictionaryValue> NSDictionaryToDictionaryValue(
         result->SetWithoutPathExpansion(str_key, std::move(sub_arr));
       else
         result->SetWithoutPathExpansion(str_key,
-                                        base::Value::CreateNullValue());
+                                        base::MakeUnique<base::Value>());
     } else if ([value isKindOfClass:[NSDictionary class]]) {
       std::unique_ptr<base::DictionaryValue> sub_dict =
           NSDictionaryToDictionaryValue(value);
@@ -112,7 +113,7 @@ std::unique_ptr<base::DictionaryValue> NSDictionaryToDictionaryValue(
         result->SetWithoutPathExpansion(str_key, std::move(sub_dict));
       else
         result->SetWithoutPathExpansion(str_key,
-                                        base::Value::CreateNullValue());
+                                        base::MakeUnique<base::Value>());
     } else {
       result->SetStringWithoutPathExpansion(
           str_key,
diff --git a/atom/common/native_mate_converters/v8_value_converter.cc b/atom/common/native_mate_converters/v8_value_converter.cc
index fe4976ce64..35e3436e24 100644
--- a/atom/common/native_mate_converters/v8_value_converter.cc
+++ b/atom/common/native_mate_converters/v8_value_converter.cc
@@ -10,6 +10,7 @@
 #include <utility>
 
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "native_mate/dictionary.h"
 
@@ -308,10 +309,10 @@ base::Value* V8ValueConverter::FromV8ValueImpl(
     return nullptr;
 
   if (val->IsExternal())
-    return base::Value::CreateNullValue().release();
+    return base::MakeUnique<base::Value>().release();
 
   if (val->IsNull())
-    return base::Value::CreateNullValue().release();
+    return base::MakeUnique<base::Value>().release();
 
   if (val->IsBoolean())
     return new base::Value(val->ToBoolean()->Value());
@@ -381,7 +382,7 @@ base::Value* V8ValueConverter::FromV8Array(
     v8::Isolate* isolate) const {
   ScopedUniquenessGuard uniqueness_guard(state, val);
   if (!uniqueness_guard.is_valid())
-    return base::Value::CreateNullValue().release();
+    return base::MakeUnique<base::Value>().release();
 
   std::unique_ptr<v8::Context::Scope> scope;
   // If val was created in a different context than our current one, change to
@@ -410,7 +411,7 @@ base::Value* V8ValueConverter::FromV8Array(
     else
       // JSON.stringify puts null in places where values don't serialize, for
       // example undefined and functions. Emulate that behavior.
-      result->Append(base::Value::CreateNullValue());
+      result->Append(base::MakeUnique<base::Value>());
   }
   return result;
 }
@@ -429,7 +430,7 @@ base::Value* V8ValueConverter::FromV8Object(
     v8::Isolate* isolate) const {
   ScopedUniquenessGuard uniqueness_guard(state, val);
   if (!uniqueness_guard.is_valid())
-    return base::Value::CreateNullValue().release();
+    return base::MakeUnique<base::Value>().release();
 
   std::unique_ptr<v8::Context::Scope> scope;
   // If val was created in a different context than our current one, change to