Convert Pass()→std::move() in //content

content/public/test/test_file_system_backend.cc

Index: content/public/test/test_file_system_backend.cc
diff --git a/content/public/test/test_file_system_backend.cc b/content/public/test/test_file_system_backend.cc
index 8ebe052f42a719f10e4be7be739987b50e0d9c38..ed71987069b9b4f36253b0cc0b65f016b5d1c1ab 100644
--- a/content/public/test/test_file_system_backend.cc
+++ b/content/public/test/test_file_system_backend.cc
@@ -6,6 +6,7 @@
 
 #include <set>
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "base/files/file.h"
@@ -171,7 +172,7 @@ TestFileSystemBackend::GetCopyOrMoveFileValidatorFactory(
 void TestFileSystemBackend::InitializeCopyOrMoveFileValidatorFactory(
     scoped_ptr<storage::CopyOrMoveFileValidatorFactory> factory) {
   if (!copy_or_move_file_validator_factory_)
-    copy_or_move_file_validator_factory_ = factory.Pass();
+    copy_or_move_file_validator_factory_ = std::move(factory);
 }
 
 FileSystemOperation* TestFileSystemBackend::CreateFileSystemOperation(
@@ -182,7 +183,8 @@ FileSystemOperation* TestFileSystemBackend::CreateFileSystemOperation(
       new FileSystemOperationContext(context));
   operation_context->set_update_observers(*GetUpdateObservers(url.type()));
   operation_context->set_change_observers(*GetChangeObservers(url.type()));
-  return FileSystemOperation::Create(url, context, operation_context.Pass());
+  return FileSystemOperation::Create(url, context,
+                                     std::move(operation_context));
 }
 
 bool TestFileSystemBackend::SupportsStreaming(