[Extensions] Remove 'use_movable_types' from code generation

tools/json_schema_compiler/test/choices_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/json_schema_compiler/test/choices.h"
 
 #include <stddef.h>
 
 #include "base/strings/string_piece.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 263 matching lines @@
     scoped_ptr<NestedChoice> obj = NestedChoice::FromValue(*value);
 
     ASSERT_TRUE(obj);
     EXPECT_FALSE(obj->as_integer);
     EXPECT_FALSE(obj->as_choice1);
     ASSERT_TRUE(obj->as_choice2);
     EXPECT_FALSE(obj->as_choice2->as_double);
     EXPECT_FALSE(obj->as_choice2->as_choice_type);
     ASSERT_TRUE(obj->as_choice2->as_choice_types);
     {
-      std::vector<linked_ptr<ChoiceType> >* choice_types =
+      std::vector<ChoiceType>* choice_types =
           obj->as_choice2->as_choice_types.get();
       // Bleh too much effort to test everything.
       ASSERT_EQ(2u, choice_types->size());
     }
 
     EXPECT_TRUE(base::Value::Equals(value.get(), obj->ToValue().get()));
   }
 }
 
 }  // namespace