DevTools: highlight search result in TimelineFlameChart

BUG=

Review URL: https://codereview.chromium.org/695513002

git-svn-id: svn://svn.chromium.org/blink/trunk@184701 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Optimize scriptParsed event handling in front-end.

Replaced some object property based maps with native Maps.
Optimized console.assert.
Optimized CompilerScriptMapping for scripts without source map.
Optimized some loops over iterators.
Extracted try-catch block to a separate method in ParsedURL.

R=pfeldman, apavlov

Review URL: https://codereview.chromium.org/684013003

git-svn-id: svn://svn.chromium.org/blink/trunk@184704 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Improve Less highlighting.

R=pfeldman, lushnikov

Review URL: https://codereview.chromium.org/689023002

git-svn-id: svn://svn.chromium.org/blink/trunk@184709 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: [Throttler] run the first task instantly

The first task the throttler will run will be run after 0 timeout.
This will avoid having perceived latency when throttler is used for
defered UI rendering.

R=pfeldman

Review URL: https://codereview.chromium.org/681083003

git-svn-id: svn://svn.chromium.org/blink/trunk@184710 bbb929c8-8fbe-4397-9dbb-9b2b20218538
DevTools: Remove a workaround for missing native Set in Context.js

R=vsevik@chromium.org, vsevik

Review URL: https://codereview.chromium.org/695443002

git-svn-id: svn://svn.chromium.org/blink/trunk@184712 bbb929c8-8fbe-4397-9dbb-9b2b20218538