Google-chrome – How to start Google Chrome with maximized window

I can not solve your problem directly, but I have the best workaround possible.

You can also create desktop shortcuts for other websites and apps you regularly use, even if they're not installed from the Chrome Web Store. Follow these steps:

1. Click the wrench icon on the browser toolbar.
2. Select Tools.
3. Select Create application shortcuts.
4. In the dialog that appears, choose where you'd like the shortcuts to be placed on your computer.
5. Click Create. -this guide to creating Application shortcuts has been copied from Google's support pages.

Here is what your looking for...

1. Right click on the shortcut or menu item you use to start the program.
2. Now, click on properties.
3. Note the item labeled Run that's set to "Normal Window". Change that to "Maximized".

After this is done, you can drag and drop the shortcut to the start menu or taskbar and you should be fine. I tried this with Windows Vista, and it worked great. I see no reason why this shouldn't work for Windows 7

It's very unlikely that it will rollback to the previous behavior since so many developers have been begging for the 'real' fullscreen behavior.

If you want to solve your particular case you can create a bookmarlet or browser extension with something like:

document.body.addEventListener('click', function(e) {
  var target = e.target;
  if (target.nodeName == 'VIDEO') { // or EMBED
    target.style.position = 'absolute';
    target.style.width = '100%';
    target.style.height = '100%';
  }
}, false);