browser: Fix some presubmit errors.

chrome/browser/extensions/extension_bookmark_helpers.h

Index: chrome/browser/extensions/extension_bookmark_helpers.h
diff --git a/chrome/browser/extensions/extension_bookmark_helpers.h b/chrome/browser/extensions/extension_bookmark_helpers.h
index 4f81171bcd9ac5c7fd6ff96b618905b9ac086707..75938197fbb490171f3e21c6b4f2f9d7870ade70 100644
--- a/chrome/browser/extensions/extension_bookmark_helpers.h
+++ b/chrome/browser/extensions/extension_bookmark_helpers.h
@@ -17,9 +17,7 @@ DictionaryValue* GetNodeDictionary(const BookmarkNode* node,
                                    bool only_folders);
 
 // Add a JSON representation of |node| to the JSON |list|.
-void AddNode(const BookmarkNode* node,
-             ListValue* list,
-             bool recurse);
+void AddNode(const BookmarkNode* node, ListValue* list, bool recurse);
 
 void AddNodeFoldersOnly(const BookmarkNode* node,
                         ListValue* list,
@@ -30,6 +28,6 @@ bool RemoveNode(BookmarkModel* model,
                 bool recursive,
                 std::string* error);
 
-}
+}  // namespace extension_bookmark_helpers
 
-#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_BOOKMARKS_HELPERS_H_
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_BOOKMARK_HELPERS_H_