Convert //extensions/{common,shell} from scoped_ptr to std::unique_ptr

extensions/common/url_pattern_set_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 "extensions/common/url_pattern_set.h"
 
 #include <stddef.h>
 
 #include <sstream>
 
@@ skipping 268 matching lines @@
 
   std::vector<std::string> patterns;
   patterns.push_back("http://www.google.com/*");
   patterns.push_back("http://www.yahoo.com/*");
 
   for (size_t i = 0; i < patterns.size(); ++i)
     AddPattern(&set1, patterns[i]);
 
   std::string error;
   bool allow_file_access = false;
-  scoped_ptr<base::ListValue> value(set1.ToValue());
+  std::unique_ptr<base::ListValue> value(set1.ToValue());
   set2.Populate(*value, URLPattern::SCHEME_ALL, allow_file_access, &error);
   EXPECT_EQ(set1, set2);
 
   set2.ClearPatterns();
   set2.Populate(patterns, URLPattern::SCHEME_ALL, allow_file_access, &error);
   EXPECT_EQ(set1, set2);
 }
 
 TEST(URLPatternSetTest, NwayUnion) {
   std::string google_a = "http://www.google.com/a*";
@@ skipping 156 matching lines @@
   EXPECT_FALSE(set.AddOrigin(
       URLPattern::SCHEME_HTTP, GURL("https://google.com/")));
 }
 
 TEST(URLPatternSetTest, ToStringVector) {
   URLPatternSet set;
   AddPattern(&set, "https://google.com/");
   AddPattern(&set, "https://google.com/");
   AddPattern(&set, "https://yahoo.com/");
 
-  scoped_ptr<std::vector<std::string>> string_vector(set.ToStringVector());
+  std::unique_ptr<std::vector<std::string>> string_vector(set.ToStringVector());
 
   EXPECT_EQ(2UL, string_vector->size());
 
   const auto begin = string_vector->begin();
   const auto end = string_vector->end();
 
   auto it = std::find(begin, end, "https://google.com/");
   EXPECT_NE(it, end);
   it = std::find(begin, end, "https://yahoo.com/");
   EXPECT_NE(it, end);
 }
 
 }  // namespace extensions