1 files changed, 11 insertions, 0 deletions
diff --git a/content/browser/webui/generic_handler.h b/content/browser/webui/generic_handler.h
index c4ed317..4e668a5 100644
--- a/content/browser/webui/generic_handler.h
+++ b/content/browser/webui/generic_handler.h
@@ -20,10 +20,21 @@ class GenericHandler : public WebUIMessageHandler {
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages();
+  virtual bool IsLoading() const OVERRIDE;
 
  private:
   void HandleNavigateToUrl(const base::ListValue* args);
 
+  // Javascript hook to indicate whether or not a long running operation is in
+  // progress.
+  void HandleSetIsLoading(const base::ListValue* args);
+
+  // Indicates whether or not this WebUI is performing a long running operation
+  // and that the throbber should reflect this.
+  void SetIsLoading(bool is_loading);
+
+  bool is_loading_;
+
   DISALLOW_COPY_AND_ASSIGN(GenericHandler);
 };