DevTools: Move content scripts to a separate project.

This patch makes a separate project type for content scripts there by removing the isContentScript flag from uiSourceCode.

Drive-by: introduce a setting to set up whether content scripts should be shown in navigator
and searched by advanced search.

R=pfeldman

Review URL: https://codereview.chromium.org/236313016

git-svn-id: svn://svn.chromium.org/blink/trunk@172043 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark editing/pasteboard/paste-noscript-xhtml.xhtml as flaky

TBR=dominicc@chromium.org
BUG=365340

Review URL: https://codereview.chromium.org/245373002

git-svn-id: svn://svn.chromium.org/blink/trunk@172044 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark http/tests/media/media-source/webkitmediasource-seek-to-end-after-duration-change.html as timeout

http/tests/media/media-source/webkitmediasource-seek-to-end-after-
duration-change.html is already marked as Slow but is timing out ~10%
of the time. Mark as Pass Timeout.

TBR=acolwell@chromium.org
BUG=362507

Review URL: https://codereview.chromium.org/245403002

git-svn-id: svn://svn.chromium.org/blink/trunk@172045 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Add executionContextsCleared event in InspectorRuntimeAgent

BUG=

Review URL: https://codereview.chromium.org/245163002

git-svn-id: svn://svn.chromium.org/blink/trunk@172046 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Auto-rebaseline for r172032

http://src.chromium.org/viewvc/blink?view=revision&revision=172032

BUG=365171
TBR=rob.buis@samsung.com

Review URL: https://codereview.chromium.org/245263004

git-svn-id: svn://svn.chromium.org/blink/trunk@172047 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Mark virtual/threaded/animations/keyframes-unprefixed-03.html as slow

TBR=jsbell@chromium.org
BUG=311482

Review URL: https://codereview.chromium.org/243103009

git-svn-id: svn://svn.chromium.org/blink/trunk@172048 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Fix tainted Array methods could crash the debugger.

BUG=364470
R=pfeldman, yurys

Review URL: https://codereview.chromium.org/243853005

git-svn-id: svn://svn.chromium.org/blink/trunk@172049 bbb929c8-8fbe-4397-9dbb-9b2b20218538