Rename sync and async file system access methods in blink. [blink] (1/4)

public/web/WebPermissionClient.h

Index: public/web/WebPermissionClient.h
diff --git a/public/web/WebPermissionClient.h b/public/web/WebPermissionClient.h
index 474d4f840ddaa6e25394fab263448e9c94b9e5ff..5612a9de82734e3bdbe3ae16078866f8d0bf78f6 100644
--- a/public/web/WebPermissionClient.h
+++ b/public/web/WebPermissionClient.h
@@ -47,7 +47,10 @@ public:
     // Controls whether access to File System is allowed for this frame.
     virtual bool allowFileSystem() { return true; }
 
-    virtual void requestFileSystemAccess(const WebPermissionCallbacks& callbacks) { }
+    // Controls whether access to File System is allowed for this frame.
+    virtual bool requestFileSystemAccessSync() { return true; }
+
+    virtual void requestFileSystemAccessAsync(const WebPermissionCallbacks& callbacks) { }
 
     // Controls whether images are allowed for this frame.
     virtual bool allowImage(bool enabledPerSettings, const WebURL& imageURL) { return enabledPerSettings; }