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

chrome/browser/media_galleries/media_file_system_context.h

Index: chrome/browser/media_galleries/media_file_system_context.h
diff --git a/chrome/browser/media_galleries/media_file_system_context.h b/chrome/browser/media_galleries/media_file_system_context.h
index f2dca18dbae39abb51f76f91a05bfe15e76be222..215a212543fe9496f784ed656eba200da966b701 100644
--- a/chrome/browser/media_galleries/media_file_system_context.h
+++ b/chrome/browser/media_galleries/media_file_system_context.h
@@ -16,8 +16,6 @@ namespace base {
 class FilePath;
 }
 
-namespace chrome {
-
 class MediaFileSystemRegistry;
 
 class MediaFileSystemContext {
@@ -40,6 +38,4 @@ class MediaFileSystemContext {
   virtual void RevokeFileSystem(const std::string& fsid) = 0;
 };
 
-}  // namespace
-
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_MEDIA_FILE_SYSTEM_CONTEXT_H_