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

chrome/browser/chromeos/drive/download_handler_unittest.cc

Index: chrome/browser/chromeos/drive/download_handler_unittest.cc
diff --git a/chrome/browser/chromeos/drive/download_handler_unittest.cc b/chrome/browser/chromeos/drive/download_handler_unittest.cc
index 24fc82bf5c7c559bd75d918d596c2edd8f8cf482..6fe5e85fce1354123c4fa9de3cec92280eca9a08 100644
--- a/chrome/browser/chromeos/drive/download_handler_unittest.cc
+++ b/chrome/browser/chromeos/drive/download_handler_unittest.cc
@@ -34,8 +34,9 @@ class DownloadHandlerTestFileSystem : public DummyFileSystem {
   // FileSystemInterface overrides.
   void GetResourceEntry(const base::FilePath& file_path,
                         const GetResourceEntryCallback& callback) override {
-    callback.Run(error_, scoped_ptr<ResourceEntry>(
-        error_ == FILE_ERROR_OK ? new ResourceEntry : NULL));
+    callback.Run(error_, std::unique_ptr<ResourceEntry>(error_ == FILE_ERROR_OK
+                                                            ? new ResourceEntry
+                                                            : NULL));
   }
 
   void CreateDirectory(const base::FilePath& directory_path,
@@ -107,10 +108,11 @@ class DownloadHandlerTest : public testing::Test {
   base::ScopedTempDir temp_dir_;
   content::TestBrowserThreadBundle thread_bundle_;
   TestingProfile profile_;
-  scoped_ptr<DownloadHandlerTestDownloadManager> download_manager_;
-  scoped_ptr<DownloadHandlerTestDownloadManager> incognito_download_manager_;
+  std::unique_ptr<DownloadHandlerTestDownloadManager> download_manager_;
+  std::unique_ptr<DownloadHandlerTestDownloadManager>
+      incognito_download_manager_;
   DownloadHandlerTestFileSystem test_file_system_;
-  scoped_ptr<DownloadHandler> download_handler_;
+  std::unique_ptr<DownloadHandler> download_handler_;
   content::MockDownloadItem download_item_;
 };