DevTools: simulate pinch zoom and pan while emulating touch events.

R=vsevik@chromium.org

Review URL: https://codereview.chromium.org/51883005

git-svn-id: svn://svn.chromium.org/blink/trunk@161064 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: [CodeMirror] fix tab highlight

This patch fixes text editor "show whitespaces" feature to actually
switch off tab highlight when the feature gets disabled.

BUG=313616

Review URL: https://codereview.chromium.org/54763002

git-svn-id: svn://svn.chromium.org/blink/trunk@161065 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Move WebDeviceMotionData and WebDeviceOrientationData to platform/exported/

BUG=297477

Review URL: https://codereview.chromium.org/43893003

git-svn-id: svn://svn.chromium.org/blink/trunk@161066 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Adding layer transparency information to output of dump render tree

BUG=237100

Review URL: https://codereview.chromium.org/53043002

git-svn-id: svn://svn.chromium.org/blink/trunk@161067 bbb929c8-8fbe-4397-9dbb-9b2b20218538