[Extensions] Remove linked_ptr entirely from extensions generated code

tools/json_schema_compiler/util.h

Index: tools/json_schema_compiler/util.h
diff --git a/tools/json_schema_compiler/util.h b/tools/json_schema_compiler/util.h
index d5eec1b2e1c49ee415e0b7fa209148a6f0d5c5f7..3365a4f69f6cb6e1177ce6f40fd0100d5cce278e 100644
--- a/tools/json_schema_compiler/util.h
+++ b/tools/json_schema_compiler/util.h
@@ -8,7 +8,6 @@
 #include <string>
 #include <vector>
 
-#include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 
@@ -18,7 +17,7 @@ namespace util {
 
 // Populates the item |out| from the value |from|. These are used by template
 // specializations of |Get(Optional)ArrayFromList|.
-bool PopulateItem(const base::Value& from, linked_ptr<base::Value>* out);
+bool PopulateItem(const base::Value& from, scoped_ptr<base::Value>* out);
 
 bool PopulateItem(const base::Value& from, int* out);
 bool PopulateItem(const base::Value& from, int* out, base::string16* error);
@@ -35,25 +34,20 @@ bool PopulateItem(const base::Value& from,
                   std::vector<char>* out,
                   base::string16* error);
 bool PopulateItem(const base::Value& from,
-                  linked_ptr<base::Value>* out,
-                  base::string16* error);
-bool PopulateItem(const base::Value& from, linked_ptr<base::Value>* out);
-bool PopulateItem(const base::Value& from,
-                  linked_ptr<base::DictionaryValue>* out);
-bool PopulateItem(const base::Value& from,
-                  linked_ptr<base::DictionaryValue>* out,
+                  scoped_ptr<base::Value>* out,
                   base::string16* error);
+bool PopulateItem(const base::Value& from, scoped_ptr<base::Value>* out);
 
 // This template is used for types generated by tools/json_schema_compiler.
 template <class T>
-bool PopulateItem(const base::Value& from, linked_ptr<T>* out) {
+bool PopulateItem(const base::Value& from, scoped_ptr<T>* out) {
   const base::DictionaryValue* dict = nullptr;
   if (!from.GetAsDictionary(&dict))
     return false;
   scoped_ptr<T> obj(new T());
   if (!T::Populate(*dict, obj.get()))
     return false;
-  *out = linked_ptr<T>(obj.release());
+  *out = scoped_ptr<T>(obj.release());
   return true;
 }
 
@@ -74,7 +68,7 @@ bool PopulateItem(const base::Value& from, T* out) {
 // error generation enabled.
 template <class T>
 bool PopulateItem(const base::Value& from,
-                  linked_ptr<T>* out,
+                  scoped_ptr<T>* out,
                   base::string16* error) {
   const base::DictionaryValue* dict = nullptr;
   if (!from.GetAsDictionary(&dict))
@@ -82,7 +76,7 @@ bool PopulateItem(const base::Value& from,
   scoped_ptr<T> obj(new T());
   if (!T::Populate(*dict, obj.get(), error))
     return false;
-  *out = linked_ptr<T>(obj.release());
+  *out = scoped_ptr<T>(obj.release());
   return true;
 }
 
@@ -167,14 +161,14 @@ void AddItemToList(const bool from, base::ListValue* out);
 void AddItemToList(const double from, base::ListValue* out);
 void AddItemToList(const std::string& from, base::ListValue* out);
 void AddItemToList(const std::vector<char>& from, base::ListValue* out);
-void AddItemToList(const linked_ptr<base::Value>& from, base::ListValue* out);
-void AddItemToList(const linked_ptr<base::DictionaryValue>& from,
+void AddItemToList(const scoped_ptr<base::Value>& from, base::ListValue* out);
+void AddItemToList(const scoped_ptr<base::DictionaryValue>& from,
                    base::ListValue* out);
 
 // This template is used for types generated by tools/json_schema_compiler.
 template <class T>
-void AddItemToList(const linked_ptr<T>& from, base::ListValue* out) {
-  out->Append(from->ToValue().release());
+void AddItemToList(const scoped_ptr<T>& from, base::ListValue* out) {
+  out->Append(from->ToValue());
 }
 
 // This template is used for types generated by tools/json_schema_compiler.