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

chrome/browser/ui/gtk/extensions/media_galleries_dialog_gtk.h

Index: chrome/browser/ui/gtk/extensions/media_galleries_dialog_gtk.h
diff --git a/chrome/browser/ui/gtk/extensions/media_galleries_dialog_gtk.h b/chrome/browser/ui/gtk/extensions/media_galleries_dialog_gtk.h
index ca8a9a8b42372df83f4dea865ce993d1eabd23ff..46bb4eda043a438a24fb32f7ccd912a2a02760bd 100644
--- a/chrome/browser/ui/gtk/extensions/media_galleries_dialog_gtk.h
+++ b/chrome/browser/ui/gtk/extensions/media_galleries_dialog_gtk.h
@@ -16,8 +16,6 @@
 #include "ui/base/gtk/gtk_signal.h"
 #include "ui/base/gtk/scoped_gobject.h"
 
-namespace chrome {
-
 class MediaGalleriesDialogController;
 class MediaGalleriesDialogTest;
 
@@ -78,6 +76,4 @@ class MediaGalleriesDialogGtk : public MediaGalleriesDialog {
   DISALLOW_COPY_AND_ASSIGN(MediaGalleriesDialogGtk);
 };
 
-}  // namespace chrome
-
 #endif  // CHROME_BROWSER_UI_GTK_EXTENSIONS_MEDIA_GALLERIES_DIALOG_GTK_H_