Convert //extensions/browser from scoped_ptr to std::unique_ptr

extensions/browser/value_store/leveldb_scoped_database_unittest.cc

 // Copyright 2016 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 "extensions/browser/value_store/leveldb_scoped_database.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <string>
@@ skipping 23 matching lines @@
   void TearDown() override {
     db_ = nullptr;
     base::DeleteFile(database_dir_.path(), true);
   }
 
   ValueStore::Status ReadAllValues(
       std::map<std::string, std::string>* values) const {
     values->clear();
     leveldb::ReadOptions read_options;
     read_options.verify_checksums = true;
-    scoped_ptr<leveldb::Iterator> iterator;
+    std::unique_ptr<leveldb::Iterator> iterator;
     ValueStore::Status status = db_->CreateIterator(read_options, &iterator);
     if (!status.ok())
       return status;
     iterator->SeekToFirst();
     while (iterator->Valid()) {
       // The LeveldbProfileDatabase writes all values as JSON strings.
       // This method returns the encoded strings.
       (*values)[iterator->key().ToString()] = iterator->value().ToString();
       iterator->Next();
     }
@@ skipping 97 matching lines @@
   base::DictionaryValue read_s2_vals;
   EXPECT_TRUE(db_->Read("scope2", &read_s2_vals).ok());
   EXPECT_TRUE(scope2_values.Equals(&read_s2_vals));
 }
 
 TEST_F(LeveldbScopedDatabaseUnitTest, TestEmptyValue) {
   base::DictionaryValue values;
   values.SetString("s1_key1", "");
   EXPECT_TRUE(db_->Write("scope1", values).ok());
 
-  scoped_ptr<base::Value> value;
+  std::unique_ptr<base::Value> value;
   ASSERT_TRUE(db_->Read("scope1", "s1_key1", &value).ok());
   std::string str;
   EXPECT_TRUE(value->GetAsString(&str));
   EXPECT_EQ(str, "");
 }
 
 TEST_F(LeveldbScopedDatabaseUnitTest, TestValueContainingDelimiter) {
   base::DictionaryValue values;
   values.SetString("s1_key1", "with:delimiter");
   EXPECT_TRUE(db_->Write("scope1", values).ok());
 
-  scoped_ptr<base::Value> value;
+  std::unique_ptr<base::Value> value;
   ASSERT_TRUE(db_->Read("scope1", "s1_key1", &value).ok());
   std::string str;
   EXPECT_TRUE(value->GetAsString(&str));
   EXPECT_EQ(str, "with:delimiter");
 }
 
 TEST_F(LeveldbScopedDatabaseUnitTest, TestDeleteValues) {
   base::DictionaryValue scope1_values;
   scope1_values.SetString("s1_key1", "s1_value1");
   scope1_values.SetString("s1_key2", "s1_value2");
@@ skipping 11 matching lines @@
   EXPECT_TRUE(db_->DeleteValues("scope2", keys).ok());
 
   base::DictionaryValue read_s1_vals;
   EXPECT_TRUE(db_->Read("scope1", &read_s1_vals).ok());
   EXPECT_TRUE(scope1_values.Equals(&read_s1_vals));
 
   base::DictionaryValue read_s2_vals;
   EXPECT_TRUE(db_->Read("scope2", &read_s2_vals).ok());
   EXPECT_TRUE(read_s2_vals.empty());
 }