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

chrome/browser/extensions/api/file_handlers/mime_util.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.
 
 #include "chrome/browser/extensions/api/file_handlers/mime_util.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/thread_task_runner_handle.h"
 #include "build/build_config.h"
@@ skipping 34 matching lines @@
                        net::FilePathToFileURL(local_path),
                        std::string(),  // type_hint (passes no hint)
                        result);
   }
 }
 
 #if defined(OS_CHROMEOS)
 // Converts a result passed as a scoped pointer to a dereferenced value passed
 // to |callback|.
 void OnGetMimeTypeFromFileForNonNativeLocalPathCompleted(
-    scoped_ptr<std::string> mime_type,
+    std::unique_ptr<std::string> mime_type,
     const base::Callback<void(const std::string&)>& callback) {
   callback.Run(*mime_type);
 }
 
 // Called when fetching MIME type for a non-native local path is completed.
 // If |success| is false, then tries to guess the MIME type by looking at the
 // file name.
 void OnGetMimeTypeFromMetadataForNonNativeLocalPathCompleted(
     const base::FilePath& local_path,
     const base::Callback<void(const std::string&)>& callback,
     bool success,
     const std::string& mime_type) {
   if (success) {
     callback.Run(mime_type);
     return;
   }
 
   // MIME type not available with metadata, hence try to guess it from the
   // file's extension.
-  scoped_ptr<std::string> mime_type_from_extension(new std::string);
+  std::unique_ptr<std::string> mime_type_from_extension(new std::string);
   std::string* const mime_type_from_extension_ptr =
       mime_type_from_extension.get();
   BrowserThread::PostBlockingPoolTaskAndReply(
       FROM_HERE,
       base::Bind(base::IgnoreResult(&net::GetMimeTypeFromFile),
                  local_path,
                  mime_type_from_extension_ptr),
       base::Bind(&OnGetMimeTypeFromFileForNonNativeLocalPathCompleted,
                  base::Passed(&mime_type_from_extension),
                  callback));
 }
 #endif
 
 // Called when sniffing for MIME type in the native local file is completed.
 void OnSniffMimeTypeForNativeLocalPathCompleted(
-    scoped_ptr<std::string> mime_type,
+    std::unique_ptr<std::string> mime_type,
     const base::Callback<void(const std::string&)>& callback) {
   // Do not return application/zip as sniffed result. If the file has .zip
   // extension, it should be already returned as application/zip. If the file
   // does not have .zip extension and couldn't find mime type from the
   // extension, it might be unknown internally zipped file.
   if (*mime_type == "application/zip") {
     callback.Run(kMimeTypeApplicationOctetStream);
     return;
   }
 
   callback.Run(*mime_type);
 }
 
 }  // namespace
 
 // Handles response of net::GetMimeTypeFromFile for native file systems. If
 // MIME type is available, then forwards it to |callback|. Otherwise, fallbacks
 // to sniffing.
 void OnGetMimeTypeFromFileForNativeLocalPathCompleted(
     const base::FilePath& local_path,
-    scoped_ptr<std::string> mime_type,
+    std::unique_ptr<std::string> mime_type,
     const base::Callback<void(const std::string&)>& callback) {
   if (!mime_type->empty()) {
     callback.Run(*mime_type);
     return;
   }
 
-  scoped_ptr<std::string> sniffed_mime_type(
+  std::unique_ptr<std::string> sniffed_mime_type(
       new std::string(kMimeTypeApplicationOctetStream));
   std::string* const sniffed_mime_type_ptr = sniffed_mime_type.get();
   BrowserThread::PostBlockingPoolTaskAndReply(
       FROM_HERE,
       base::Bind(&SniffMimeType, local_path, sniffed_mime_type_ptr),
       base::Bind(&OnSniffMimeTypeForNativeLocalPathCompleted,
                  base::Passed(&sniffed_mime_type),
                  callback));
 }
 
@@ skipping 12 matching lines @@
         local_path,
         base::Bind(&OnGetMimeTypeFromMetadataForNonNativeLocalPathCompleted,
                    local_path,
                    callback));
     return;
   }
 #endif
 
   // For native local files, try to guess the mime from the extension. If
   // not available, then try to sniff if.
-  scoped_ptr<std::string> mime_type_from_extension(new std::string);
+  std::unique_ptr<std::string> mime_type_from_extension(new std::string);
   std::string* const mime_type_from_extension_ptr =
       mime_type_from_extension.get();
   BrowserThread::PostBlockingPoolTaskAndReply(
       FROM_HERE,
       base::Bind(base::IgnoreResult(&net::GetMimeTypeFromFile),
                  local_path,
                  mime_type_from_extension_ptr),
       base::Bind(&OnGetMimeTypeFromFileForNativeLocalPathCompleted,
                  local_path,
                  base::Passed(&mime_type_from_extension),
@@ skipping 53 matching lines @@
         FROM_HERE, base::Bind(callback_, base::Passed(&result_)));
     // Release the callback to avoid a circullar reference in case an instance
     // of this class is a member of a ref counted class, which instance is bound
     // to this callback.
     callback_ = CompletionCallback();
   }
 }
 
 }  // namespace app_file_handler_util
 }  // namespace extensions