I hope you don't get a C&D from Google!
No worries about C&D from Google:
Android | Brand Guidelines
You can use the robot, just not the "android" font/logo, and you have to attribute the image to them, if possible:
Proper attribution is required when you reuse or create modified versions of content that appears on a page made available under the terms of the Creative Commons Attribution license. The complete requirements for attribution can be found in section 4b of the Creative Commons legal code
In practice we ask that you provide attribution to Google to the best of the ability of the medium in which you are producing the work.
If your online work shows modified
text or images based on the content from this site, please include a paragraph at the bottom of your page that reads:
Again, please link back to the original source page so that readers can refer there for more information. This is even more important when the content has been modified.