Gardening: Update to latest version.

Effecting CLS:

1)https://codereview.chromium.org/68893010
2)https://codereview.chromium.org/68313003
tools: Write down a few instructions how to make a Chromium release
Gardening: Add missing changes in Deps file.
Minor cleanup in DRWH.

This patch removes functions which are no more part of the base
class. Also moves functions over-ridden from DesktopRootWindowHost
to correct place.

GrabSnapshot: https://chromiumcodereview.appspot.com/14594002
SetInactiveRenderingDisabled: https://codereview.chromium.org/23072016
Merge pull request #140 from tiagovignatti/tarball-v2

tools: Write down a few instructions how to make a Chromium release