Deprecate FileError in FileAPI

Apps should expect DOMError instead.

This change breaks existing apps, so I kept FileError in this CL
but made it inherit from DOMError and marked '.code' attribute
deprecated.

BUG=276861
TEST=fast/files/*,fast/filesystem/*

Review URL: https://chromiumcodereview.appspot.com/22831019

git-svn-id: svn://svn.chromium.org/blink/trunk@156562 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Revert "DevTools: Fix select all behavior in audit laucnher view after r155192."

This reverts commit 1dd22e1f0d1eb6f79366f7c09996263dab607cb1.

BUG=276843
TBR=pfeldman,apavlov@chromium.org

Review URL: https://codereview.chromium.org/23361016

git-svn-id: svn://svn.chromium.org/blink/trunk@156563 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Revert "DevTools: [Audits] Fix the way the category counter is updated"

This reverts commit d046ab1672b33b75cbbb394898c43068e3e43772.

BUG=270028
TBR=pfeldman,apavlov@chromium.org

Review URL: https://codereview.chromium.org/22875038

git-svn-id: svn://svn.chromium.org/blink/trunk@156564 bbb929c8-8fbe-4397-9dbb-9b2b20218538