diff --git a/storage/browser/fileapi/file_system_url.cc b/storage/browser/fileapi/file_system_url.cc
index b90cf2904..e28b1f85d 100644
--- a/storage/browser/fileapi/file_system_url.cc
+++ b/storage/browser/fileapi/file_system_url.cc
@@ -26,7 +26,7 @@ FileSystemURL::FileSystemURL()
 
 FileSystemURL::FileSystemURL(const FileSystemURL& other) = default;
 
-FileSystemURL::FileSystemURL(FileSystemURL&& other) noexcept = default;
+FileSystemURL::FileSystemURL(FileSystemURL&& other) = default;
 
 FileSystemURL& FileSystemURL::operator=(FileSystemURL&& rhs) = default;
 
diff --git a/storage/browser/fileapi/file_system_url.h b/storage/browser/fileapi/file_system_url.h
index 8220812d0..f6b8813e2 100644
--- a/storage/browser/fileapi/file_system_url.h
+++ b/storage/browser/fileapi/file_system_url.h
@@ -82,7 +82,7 @@ class COMPONENT_EXPORT(STORAGE_BROWSER) FileSystemURL {
   FileSystemURL(const FileSystemURL& other);
   // Constructs FileSystemURL with the contents of |other|, which is left in
   // valid but unspecified state.
-  FileSystemURL(FileSystemURL&& other) noexcept;
+  FileSystemURL(FileSystemURL&& other);
   ~FileSystemURL();
 
   // Replaces the contents with those of |rhs|, which is left in valid but