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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/ui/autofill_popup.cc
Hide();
}
int AutofillPopup::GetDesiredPopupHeight() {
  return 2 * kPopupBorderThickness + values_.size() * kRowHeight;
}
int AutofillPopup::GetDesiredPopupWidth() {
  int popup_width = element_bounds_.width();
  for (size_t i = 0; i < values_.size(); ++i) {
    int row_size =
        kEndPadding + 2 * kPopupBorderThickness +
        gfx::GetStringWidth(GetValueAt(i), GetValueFontListForRow(i)) +
        gfx::GetStringWidth(GetLabelAt(i), GetLabelFontListForRow(i));
    if (GetLabelAt(i).length() > 0)
      row_size += kNamePadding + kEndPadding;
    popup_width = std::max(popup_width, row_size);
  }
  return popup_width;
}
gfx::Rect AutofillPopup::GetRowBounds(int index) {
  int top = kPopupBorderThickness + index * kRowHeight;
  return gfx::Rect(kPopupBorderThickness, top,
                   popup_bounds_.width() - 2 * kPopupBorderThickness,
                   kRowHeight);
}
const gfx::FontList& AutofillPopup::GetValueFontListForRow(int index) const {
  return bold_font_list_;
}
const gfx::FontList& AutofillPopup::GetLabelFontListForRow(int index) const {