Convert Pass()→std::move() in //chrome/browser/extensions

chrome/browser/extensions/activity_log/counting_policy.cc

 // Copyright 2013 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.
 
 // A policy for storing activity log data to a database that performs
 // aggregation to reduce the size of the database.  The database layout is
 // nearly the same as FullStreamUIPolicy, which stores a complete log, with a
 // few changes:
 //   - a "count" column is added to track how many log records were merged
 //     together into this row
@@ skipping 417 matching lines @@
     const std::string& page_url,
     const std::string& arg_url,
     const int days_ago) {
   // Ensure data is flushed to the database first so that we query over all
   // data.
   activity_database()->AdviseFlush(ActivityDatabase::kFlushImmediately);
   scoped_ptr<Action::ActionVector> actions(new Action::ActionVector());
 
   sql::Connection* db = GetDatabaseConnection();
   if (!db)
-    return actions.Pass();
+    return actions;
 
   // Build up the query based on which parameters were specified.
   std::string where_str = "";
   std::string where_next = "";
   if (!extension_id.empty()) {
     where_str += "extension_id=?";
     where_next = " AND ";
   }
   if (!api_name.empty()) {
     where_str += where_next + "api_name=?";
@@ skipping 67 matching lines @@
           base::JSONReader::Read(query.ColumnString(8));
       if (parsed_value && parsed_value->IsType(base::Value::TYPE_DICTIONARY)) {
         action->set_other(make_scoped_ptr(
             static_cast<base::DictionaryValue*>(parsed_value.release())));
       }
     }
     action->set_count(query.ColumnInt(9));
     actions->push_back(action);
   }
 
-  return actions.Pass();
+  return actions;
 }
 
 void CountingPolicy::DoRemoveActions(const std::vector<int64_t>& action_ids) {
   if (action_ids.empty())
     return;
 
   sql::Connection* db = GetDatabaseConnection();
   if (!db) {
     LOG(ERROR) << "Unable to connect to database";
     return;
@@ skipping 260 matching lines @@
   return true;
 }
 
 void CountingPolicy::Close() {
   // The policy object should have never been created if there's no DB thread.
   DCHECK(BrowserThread::IsMessageLoopValid(BrowserThread::DB));
   ScheduleAndForget(activity_database(), &ActivityDatabase::Close);
 }
 
 }  // namespace extensions