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

chrome/browser/media_galleries/fileapi/media_path_filter.h

Index: chrome/browser/media_galleries/fileapi/media_path_filter.h
diff --git a/chrome/browser/media_galleries/fileapi/media_path_filter.h b/chrome/browser/media_galleries/fileapi/media_path_filter.h
index c74d4d390a500b743b63f4b8d2c7c63b751c2dcc..21db8dd04cbecd53e963bd10a6a0e472c2fdcaed 100644
--- a/chrome/browser/media_galleries/fileapi/media_path_filter.h
+++ b/chrome/browser/media_galleries/fileapi/media_path_filter.h
@@ -14,8 +14,6 @@ namespace base {
 class FilePath;
 }
 
-namespace chrome {
-
 // This class holds the list of file path extensions that we should expose on
 // media filesystem.
 class MediaPathFilter {
@@ -36,6 +34,4 @@ class MediaPathFilter {
   DISALLOW_COPY_AND_ASSIGN(MediaPathFilter);
 };
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MEDIA_PATH_FILTER_H_