This will be included in blink, and we should avoid taking up these
dependencies.

It turns out that this file was pulling in many required headers in many
files. Do these includes directly.

TBR=hubbe,torne,piman
BUG=648707
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel

Review-Url: https://codereview.chromium.org/2354903003
Cr-Commit-Position: refs/heads/master@{#420232}