* Electron Version: v2.0.1
* Operating System (Platform and Version): windows10
* Last known working Electron version: 1.7.9

Allow frameless transparent windows to be sized smaller than 64x64 on Windows #12923

but，now, it can't bigger than 64x64 on Windows
my `height/width` don't work
when i set `frame: true`, it can't resize
remove `transparent: true`, all work right
![2018-05-18 11_14_17](https://user-images.githubusercontent.com/12164900/40214332-aac2815e-5a8c-11e8-8aa1-38ec2a427e0a.gif)

atom/browser/native_window.cc
return sheet_offset_y_;
}
void NativeWindow::SetRepresentedFilename(const std::string& filename) {}
std::string NativeWindow::GetRepresentedFilename() {
  return "";
}
void NativeWindow::SetDocumentEdited(bool edited) {}
bool NativeWindow::IsDocumentEdited() {
  return false;
}
void NativeWindow::SetFocusable(bool focusable) {}
void NativeWindow::SetMenu(AtomMenuModel* menu) {}
void NativeWindow::SetParentWindow(NativeWindow* parent) {
  parent_ = parent;
}
void NativeWindow::SetAutoHideCursor(bool auto_hide) {}
void NativeWindow::SelectPreviousTab() {}
void NativeWindow::SelectNextTab() {}
void NativeWindow::MergeAllWindows() {}
void NativeWindow::MoveTabToNewWindow() {}
void NativeWindow::ToggleTabBar() {}
bool NativeWindow::AddTabbedWindow(NativeWindow* window) {
  return true;  
}
void NativeWindow::SetVibrancy(const std::string& filename) {}
void NativeWindow::SetTouchBar(
    const std::vector<mate::PersistentDictionary>& items) {}
void NativeWindow::RefreshTouchBarItem(const std::string& item_id) {}