Remove app shortcuts when app is uninstalled on Linux.

chrome/browser/web_applications/web_app_mac.mm

Index: chrome/browser/web_applications/web_app_mac.mm
diff --git a/chrome/browser/web_applications/web_app_mac.mm b/chrome/browser/web_applications/web_app_mac.mm
index de64f3510f5bf14193e42b9e2e6f3cb4c99917eb..e4d22f0a38dbb94fb39e2b2b4d9f5526be468be8 100644
--- a/chrome/browser/web_applications/web_app_mac.mm
+++ b/chrome/browser/web_applications/web_app_mac.mm
@@ -262,5 +262,11 @@ bool CreatePlatformShortcut(
   return shortcut_creator.CreateShortcut();
 }
 
+void DeletePlatformShortcuts(const FilePath& profile_path,
+                             const std::string& extension_id) {
+  // TODO(benwells): Implement this when shortcuts / weblings are enabled on
+  // mac.
+}
+
 }  // namespace internals
 }  // namespace web_app