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# Description

* Electron version: 1.8.4
* Operating system: Windows 10

Calling `webContents.sendInputEvent` with type as `"char"` to a document containing a webview is rendered offscreen and an input panel is focused

<!-- What do you think should happen? -->

# Expected result

Keyboard input should be placed into the input panel

<!-- What actually happens? -->

# Actual result

Electron crashes

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# Repro steps

[I have a repo set up that will demonstrate the issue.](https://github.com/ImOnALampshade/electron-webview-char-crash) Clone that to see. Read the readme in that for more information.

```bash
git clone https://github.com/ImOnALampshade/electron-webview-char-crash.git
npm install
npm start
```
atom/browser/api/atom_api_web_contents.cc
return web_contents()->GetUserAgentOverride();
}
bool WebContents::SavePage(const base::FilePath& full_file_path,
                           const content::SavePageType& save_type,
                           const SavePageHandler::SavePageCallback& callback) {
  auto* handler = new SavePageHandler(web_contents(), callback);
  return handler->Handle(full_file_path, save_type);
}
void WebContents::OpenDevTools(mate::Arguments* args) {
  if (type_ == REMOTE)
    return;
  if (!enable_devtools_)
    return;
  std::string state;
  if (type_ == WEB_VIEW || !owner_window()) {
    state = "detach";
  }
  if (args && args->Length() == 1) {
    mate::Dictionary options;
    if (args->GetNext(&options)) {
      options.Get("mode", &state);
    }
  }
  managed_web_contents()->SetDockState(state);
  managed_web_contents()->ShowDevTools();
}
void WebContents::CloseDevTools() {