Cleanup: Remove chrome namespace for storage monitor and media galleries.

chrome/browser/media_galleries/fileapi/file_path_watcher_util.h

Index: chrome/browser/media_galleries/fileapi/file_path_watcher_util.h
diff --git a/chrome/browser/media_galleries/fileapi/file_path_watcher_util.h b/chrome/browser/media_galleries/fileapi/file_path_watcher_util.h
index f5a1e57045dfed1426159ba1991b4ed5728ec541..bf158ac40f42c0e8a62602f8f61c970e750262f1 100644
--- a/chrome/browser/media_galleries/fileapi/file_path_watcher_util.h
+++ b/chrome/browser/media_galleries/fileapi/file_path_watcher_util.h
@@ -10,8 +10,6 @@
 #include "base/files/file_path.h"
 #include "base/files/file_path_watcher.h"
 
-namespace chrome {
-
 typedef base::Callback<void(scoped_ptr<base::FilePathWatcher> watcher)>
     FileWatchStartedCallback;
 
@@ -23,6 +21,4 @@ void StartFilePathWatchOnMediaTaskRunner(
     const FileWatchStartedCallback& watch_started_callback,
     const base::FilePathWatcher::Callback& path_changed_callback);
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_FILE_PATH_WATCHER_UTIL_H_