- Electron version: 1.2.2
- Operating system: Linux

This is a problem only in linux. It works in OSX.

``` javascript
win.hide()
win.capturePage(function(img){
 // never called
})
```

shell/browser/api/electron_api_web_contents.cc
std::string* class_name) {
  *class_name = Browser::Get()->GetName();
  *name = base::ToLowerASCII(*class_name);
}
#endif
void WebContents::OnDevToolsIndexingWorkCalculated(
    int request_id,
    const std::string& file_system_path,
    int total_work) {
  base::Value request_id_value(request_id);
  base::Value file_system_path_value(file_system_path);
  base::Value total_work_value(total_work);
  inspectable_ontents_->CallClientFunction(
      "DevToolsAPI.indexingTotalWorkCalculated", &request_id_value,
      &file_system_path_value, &total_work_value);
}
void WebContents::OnDevToolsIndexingWorked(int request_id,
                                           const std::string& file_system_path,
                                           int worked) {
  base::Value request_id_value(request_id);
  base::Value file_system_path_value(file_system_path);
  base::Value worked_value(worked);
  inspectable_ontents_->CallClientFunction(
      "DevToolsAPI.indexingWorked", &request_id_value, &file_system_path_value,
      &worked_value);
}
void WebContents::OnDevToolsIndexingDone(int request_id,