Create core/html/media/ and move auxiliary media files in it.
This is moving all media files from core/html/ into this new directory
except the HTML elements implementation and their tests. It helps with
the teamification effort and will help with reviews for these files.
This is also moving HTMLMediaElementControlsList.h include out of
HTMLMediaElement.h and forward declare the class instead. In order to do so
a new controlsListInternal() was added for non-binding usage.
BUG=None
R=foolip@chromium.org
Review-Url: https://codereview.chromium.org/2780403004
Cr-Commit-Position: refs/heads/master@{#461691}
30 files changed
