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

extensions/browser/value_store/value_store_frontend.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/browser/value_store/value_store_frontend.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
@@ skipping 14 matching lines @@
       : store_factory_(store_factory), backend_type_(backend_type) {}
 
   void Get(const std::string& key,
            const ValueStoreFrontend::ReadCallback& callback) {
     DCHECK_CURRENTLY_ON(BrowserThread::FILE);
     LazyInit();
     ValueStore::ReadResult result = storage_->Get(key);
 
     // Extract the value from the ReadResult and pass ownership of it to the
     // callback.
-    scoped_ptr<base::Value> value;
+    std::unique_ptr<base::Value> value;
     if (result->status().ok()) {
       result->settings().RemoveWithoutPathExpansion(key, &value);
     } else {
       LOG(WARNING) << "Reading " << key << " from " << db_path_.value()
                    << " failed: " << result->status().message;
     }
 
     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
         base::Bind(&ValueStoreFrontend::Backend::RunCallback,
                    this, callback, base::Passed(&value)));
   }
 
-  void Set(const std::string& key, scoped_ptr<base::Value> value) {
+  void Set(const std::string& key, std::unique_ptr<base::Value> value) {
     DCHECK_CURRENTLY_ON(BrowserThread::FILE);
     LazyInit();
     // We don't need the old value, so skip generating changes.
     ValueStore::WriteResult result = storage_->Set(
         ValueStore::IGNORE_QUOTA | ValueStore::NO_GENERATE_CHANGES,
         key,
         *value.get());
     LOG_IF(ERROR, !result->status().ok()) << "Error while writing " << key
                                           << " to " << db_path_.value();
   }
@@ skipping 22 matching lines @@
       case BackendType::RULES:
         storage_ = store_factory_->CreateRulesStore();
         break;
       case BackendType::STATE:
         storage_ = store_factory_->CreateStateStore();
         break;
     }
   }
 
   void RunCallback(const ValueStoreFrontend::ReadCallback& callback,
-                   scoped_ptr<base::Value> value) {
+                   std::unique_ptr<base::Value> value) {
     DCHECK_CURRENTLY_ON(BrowserThread::UI);
     callback.Run(std::move(value));
   }
 
   // The factory which will be used to lazily create the ValueStore when needed.
   // Used exclusively on the FILE thread.
   scoped_refptr<ValueStoreFactory> store_factory_;
   BackendType backend_type_;
 
   // The actual ValueStore that handles persisting the data to disk. Used
   // exclusively on the FILE thread.
-  scoped_ptr<ValueStore> storage_;
+  std::unique_ptr<ValueStore> storage_;
 
   base::FilePath db_path_;
 
   DISALLOW_COPY_AND_ASSIGN(Backend);
 };
 
 ValueStoreFrontend::ValueStoreFrontend(
     const scoped_refptr<ValueStoreFactory>& store_factory,
     BackendType backend_type)
     : backend_(new Backend(store_factory, backend_type)) {}
 
 ValueStoreFrontend::~ValueStoreFrontend() {
   DCHECK(CalledOnValidThread());
 }
 
 void ValueStoreFrontend::Get(const std::string& key,
                              const ReadCallback& callback) {
   DCHECK(CalledOnValidThread());
 
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
       base::Bind(&ValueStoreFrontend::Backend::Get,
                  backend_, key, callback));
 }
 
 void ValueStoreFrontend::Set(const std::string& key,
-                             scoped_ptr<base::Value> value) {
+                             std::unique_ptr<base::Value> value) {
   DCHECK(CalledOnValidThread());
 
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
       base::Bind(&ValueStoreFrontend::Backend::Set,
                  backend_, key, base::Passed(&value)));
 }
 
 void ValueStoreFrontend::Remove(const std::string& key) {
   DCHECK(CalledOnValidThread());
 
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
       base::Bind(&ValueStoreFrontend::Backend::Remove,
                  backend_, key));
 }