Expose gallery watching functionality to the public mediaGalleries API.

chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.cc

Index: chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.cc
diff --git a/chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.cc b/chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.cc
index db2759e9db8775c125f87029e94930c4dc9ec8ac..3159d3bdee7ad152d5b21ee40909af6e06e17677 100644
--- a/chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.cc
+++ b/chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.cc
@@ -49,9 +49,8 @@ void HandleProfileShutdownOnFileThread(void* profile_id) {
   GalleryWatchManager::OnProfileShutdown(profile_id);
 }
 
-// Gets the |gallery_file_path| and |gallery_pref_id| of the gallery specified
-// by the |gallery_id|. Returns true and set |gallery_file_path| and
-// |gallery_pref_id| if the |gallery_id| is valid and returns false otherwise.
+// Returns true and sets |gallery_file_path| and |gallery_pref_id| if the
+// |gallery_id| is valid and returns false otherwise.
 bool GetGalleryFilePathAndId(const std::string& gallery_id,
                              Profile* profile,
                              const Extension* extension,