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

extensions/common/update_manifest.cc

 // Copyright 2014 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/update_manifest.h"
 
 #include <algorithm>
+#include <memory>
 
-#include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/version.h"
 #include "libxml/tree.h"
 #include "third_party/libxml/chromium/libxml_utils.h"
 
 static const char* kExpectedGupdateProtocol = "2.0";
 static const char* kExpectedGupdateXmlns =
@@ skipping 258 matching lines @@
     std::string error;
     if (!ParseSingleAppTag(apps[i], gupdate_ns, &current, &error)) {
       ParseError("%s", error.c_str());
     } else {
       results_.list.push_back(current);
     }
   }
 
   return true;
 }