[part 1] Make classes and structures in modules/ fast-allocated.

Source/modules/filesystem/DevToolsHostFileSystem.cpp

Index: Source/modules/filesystem/DevToolsHostFileSystem.cpp
diff --git a/Source/modules/filesystem/DevToolsHostFileSystem.cpp b/Source/modules/filesystem/DevToolsHostFileSystem.cpp
index d2ea9df5d62f5f5c0a85b14c73a1cc84870bc981..b678f573c36cb0fb23ac75a90f7f8b14e316695a 100644
--- a/Source/modules/filesystem/DevToolsHostFileSystem.cpp
+++ b/Source/modules/filesystem/DevToolsHostFileSystem.cpp
@@ -31,9 +31,4 @@ void DevToolsHostFileSystem::upgradeDraggedFileSystemPermissions(DevToolsHost& h
     host.sendMessageToEmbedder(message->toJSONString());
 }
 
-DevToolsHostFileSystem::DevToolsHostFileSystem() { }
-
-DevToolsHostFileSystem::~DevToolsHostFileSystem() { }
-
-
 } // namespace blink