* Electron version: 1.4.15
* Operating system: Windows 10

### Actual behavior

Height is oversized by exactly 8px consistently (taskbar is set to small icons).

![Alt](https://raw.githubusercontent.com/adi518/electron-frameless-maximize-test/master/issue.jpg)

### How to reproduce

https://github.com/adi518/electron-frameless-maximize-test
atom/browser/native_window_views.cc
const auto new_web_view_size = web_view_ ? web_view_->size() : gfx::Size();
  if (browser_view_) {
    const auto flags = static_cast<NativeBrowserViewViews*>(browser_view_)
                           ->GetAutoResizeFlags();
    int width_delta = 0;
    int height_delta = 0;
    if (flags & kAutoResizeWidth) {
      width_delta = new_web_view_size.width() - old_web_view_size.width();
    }
    if (flags & kAutoResizeHeight) {
      height_delta = new_web_view_size.height() - old_web_view_size.height();
    }
    auto* view = browser_view_->GetInspectableWebContentsView()->GetView();
    auto new_view_size = view->size();
    new_view_size.set_width(new_view_size.width() + width_delta);
    new_view_size.set_height(new_view_size.height() + height_delta);
    view->SetSize(new_view_size);
  }
}
gfx::Size NativeWindowViews::GetMinimumSize() {
  return NativeWindow::GetMinimumSize();
}
gfx::Size NativeWindowViews::GetMaximumSize() {
  return NativeWindow::GetMaximumSize();
}
bool NativeWindowViews::AcceleratorPressed(const ui::Accelerator& accelerator) {
  return accelerator_util::TriggerAcceleratorTableCommand(
      &accelerator_table_, accelerator);
}
void NativeWindowViews::RegisterAccelerators(AtomMenuModel* menu_model) {