Close SpeechRecognitionBubble on pressing the Escape key.

This cl adds support to cancel the SpeechRecognitionBubble on
pressing the Escape key.

BUG=344481

Review URL: https://codereview.chromium.org/167283005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252814 0039d316-1c4b-4281-b951-d872f2087c98
Blink roll 167621:167633

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=167622:167633&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/174823003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252815 0039d316-1c4b-4281-b951-d872f2087c98
[Android] Remove runtime scaling constant queries

These constants are missing on certain devices, and won't actually be needed
until crrev.com/171773012 lands.  Remove them entirely to prevent further
breakage on Blink dbg bots.

BUG=345602
TBR=yfriedman@chromium.org

Review URL: https://codereview.chromium.org/175693009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252816 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@252817 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 252817