Remove app shortcuts when app is uninstalled on Linux.

chrome/browser/web_applications/web_app.h

Index: chrome/browser/web_applications/web_app.h
diff --git a/chrome/browser/web_applications/web_app.h b/chrome/browser/web_applications/web_app.h
index 253c88fc0b71b0883a50289acb8f2b6c3ee1e35f..bcd445a527e1a7542f89db10bd85376a9b2101d9 100644
--- a/chrome/browser/web_applications/web_app.h
+++ b/chrome/browser/web_applications/web_app.h
@@ -54,6 +54,11 @@ void CreateShortcut(
     const FilePath& profile_path,
     const ShellIntegration::ShortcutInfo& shortcut_info);
 
+// Delete all the shortcuts that have been created for the extension with
+// |extension_id| in the profile with |profile_path|.
+void DeleteAllShortcuts(const FilePath& profile_path,
+                        const std::string& extension_id);
+
 // Creates a shortcut. Must be called on the file thread. This is used to
 // implement CreateShortcut() above, and can also be used directly from the
 // file thread. |profile_path| is the path of the creating profile.
@@ -97,6 +102,12 @@ bool CreatePlatformShortcut(
     const FilePath& profile_path,
     const ShellIntegration::ShortcutInfo& shortcut_info);
 
+// Delete all the shortcuts we have added for this extension. This is the
+// platform specific implementation of the DeleteAllShortcuts function, and
+// is executed on the FILE thread..
+void DeletePlatformShortcuts(const FilePath& profile_path,
+                             const std::string& extension_id);
+
 // Sanitizes |name| and returns a version of it that is safe to use as an
 // on-disk file name .
 FilePath GetSanitizedFileName(const string16& name);