Soldato
How on earth are these things not picked up when the driver goes through QA?
EDIT: Just noticed that once it fills your GPU frame buffer it starts eating into system memory. Only realised that after resizing a bit more to test and my PC black screened as it filled both the GPU and System memory completely.
If I close a game has I normally would Vram remains has normal. If I do what you asked and re-size chrome it fill up full 4GB and a restart is needed.
Edit
Maybe not just noticed its also most 1GB it was 400mb when I looked.. Something isn't right