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

content/browser/appcache/appcache_backend_impl.h

Index: content/browser/appcache/appcache_backend_impl.h
diff --git a/content/browser/appcache/appcache_backend_impl.h b/content/browser/appcache/appcache_backend_impl.h
index b0136b4081ad08e49b509f3ede6b733e9b265654..4585b789038211e31b38e592721bf042f7f0ec3f 100644
--- a/content/browser/appcache/appcache_backend_impl.h
+++ b/content/browser/appcache/appcache_backend_impl.h
@@ -63,8 +63,8 @@ class CONTENT_EXPORT AppCacheBackendImpl {
   // Methods to support cross site navigations. Hosts are transferred
   // from process to process accordingly, deparented from the old
   // processes backend and reparented to the new.
-  scoped_ptr<AppCacheHost> TransferHostOut(int host_id);
-  void TransferHostIn(int new_host_id, scoped_ptr<AppCacheHost> host);
+  std::unique_ptr<AppCacheHost> TransferHostOut(int host_id);
+  void TransferHostIn(int new_host_id, std::unique_ptr<AppCacheHost> host);
 
  private:
   AppCacheServiceImpl* service_;