Almost all Google products have gone through a make over in the past one year or so. But this Black Google Bar that appears on the top of every product remained the same.
Now it is time for this black bar to go through design changes. Interestingly they have removed this Google bar altogether and replaced with an all new Chrome OS Style Apps launcher menu.
Here is how the Google Bar looks before change:
New Design with Google Bar gone and a new Chrome Style Apps Launcher Icon
More details about the announcement is available here.