* Electron Version: 2.0.0
* Operating System (Platform and Version): Windows 10
* Last known working Electron version: before commit bb5eecc16cff8053c7b04e0b9396803fbbb8c4df

**Expected Behavior**
Width and height of a window should not change while being dragged 

**Actual behavior**
Width and height become smaller.

**To Reproduce**
Create a window with:
  var mainWindow = new BrowserWindow({width: 1024, height: 880, x: 30, y: 30,
            resizable: false })

Then drag the window.  Width and height become smaller than specified (1024, 880)

**Additional Information**
NativeWindowViews::SetBounds calls SetMin/MaxSize(bounds) when resizable_ is false.  bounds get adjusted to smaller  numbers by WindowBoundsToContentBounds.

shell/browser/native_window_views_win.cc
case APPCOMMAND_MEDIA_PLAY_PAUSE:
      return "media-play-pause";
    case APPCOMMAND_LAUNCH_MAIL:
      return "launch-mail";
    case APPCOMMAND_LAUNCH_MEDIA_SELECT:
      return "launch-media-select";
    case APPCOMMAND_LAUNCH_APP1:
      return "launch-app1";
    case APPCOMMAND_LAUNCH_APP2:
      return "launch-app2";
    case APPCOMMAND_BASS_DOWN:
      return "bass-down";
    case APPCOMMAND_BASS_BOOST:
      return "bass-boost";
    case APPCOMMAND_BASS_UP:
      return "bass-up";
    case APPCOMMAND_TREBLE_DOWN:
      return "treble-down";
    case APPCOMMAND_TREBLE_UP:
      return "treble-up";
    case APPCOMMAND_MICROPHONE_VOLUME_MUTE:
      return "microphone-volume-mute";
    case APPCOMMAND_MICROPHONE_VOLUME_DOWN:
      return "microphone-volume-down";
    case APPCOMMAND_MICROPHONE_VOLUME_UP:
      return "microphone-volume-up";
    case APPCOMMAND_HELP:
      return "help";
    case APPCOMMAND_FIND:
      return "find";