kqueue implementation of FilePathWatcher on Mac.

content/common/file_path_watcher/file_path_watcher.cc

Index: content/common/file_path_watcher/file_path_watcher.cc
diff --git a/content/common/file_path_watcher/file_path_watcher.cc b/content/common/file_path_watcher/file_path_watcher.cc
index f40c8c85d4e6593ba1652d8d83d1f0e465ac919f..41f3e2b10a98ef490a0edc75691e407b9f244a49 100644
--- a/content/common/file_path_watcher/file_path_watcher.cc
+++ b/content/common/file_path_watcher/file_path_watcher.cc
@@ -14,11 +14,9 @@ FilePathWatcher::~FilePathWatcher() {
   impl_->Cancel();
 }
 
-bool FilePathWatcher::Watch(const FilePath& path,
-                            Delegate* delegate,
-                            base::MessageLoopProxy* loop) {
+bool FilePathWatcher::Watch(const FilePath& path, Delegate* delegate) {
   DCHECK(path.IsAbsolute());
-  return impl_->Watch(path, delegate, loop);
+  return impl_->Watch(path, delegate);
 }
 
 FilePathWatcher::PlatformDelegate::PlatformDelegate(): cancelled_(false) {