Remove ScopedVector from ContentBrowserClient.

chrome/browser/chrome_content_browser_client_parts.h

Index: chrome/browser/chrome_content_browser_client_parts.h
diff --git a/chrome/browser/chrome_content_browser_client_parts.h b/chrome/browser/chrome_content_browser_client_parts.h
index 687f03848b73e1d1e13851666103ea34d9665081..5198acd3f98a8d56f0fbae6a8fd357e071655f1b 100644
--- a/chrome/browser/chrome_content_browser_client_parts.h
+++ b/chrome/browser/chrome_content_browser_client_parts.h
@@ -51,7 +51,8 @@ class ChromeContentBrowserClientParts {
   virtual void GetAdditionalFileSystemBackends(
       content::BrowserContext* browser_context,
       const base::FilePath& storage_partition_path,
-      ScopedVector<storage::FileSystemBackend>* additional_backends) {}
+      std::vector<std::unique_ptr<storage::FileSystemBackend>>*
+          additional_backends) {}
 
   // Append extra switches to |command_line| for |process|. If |process| is not
   // NULL, then neither is |profile|.