Web Inspector: mute the native looks of the selects in the console.
https://bugs.webkit.org/show_bug.cgi?id=91120

Reviewed by Vsevolod Vlasov.

This is necessary for Mac now that we don't use border images for select.

* inspector/front-end/ConsoleView.js:
(WebInspector.ConsoleView.prototype.get statusBarItems):
(WebInspector.ConsoleView.prototype.addContext):
(WebInspector.ConsoleView.prototype.removeContext):
(WebInspector.ConsoleView.prototype._updateIsolatedWorldSelector):
(WebInspector.ConsoleView.prototype._appendIsolatedContextOption):
(WebInspector.ConsoleView.prototype._currentEvaluationContext):
(WebInspector.ConsoleView.prototype._currentIsolatedContextId):
* inspector/front-end/StatusBarButton.js:
(WebInspector.StatusBarComboBox):
(WebInspector.StatusBarComboBox.prototype.addOption):
(WebInspector.StatusBarComboBox.prototype.removeOption):
(WebInspector.StatusBarComboBox.prototype.removeOptions):
(WebInspector.StatusBarComboBox.prototype.selectedOption):
* inspector/front-end/inspector.css:
(.status-bar-select-container):
(select.status-bar-item):
(.console-context):

git-svn-id: svn://svn.chromium.org/blink/trunk@122557 bbb929c8-8fbe-4397-9dbb-9b2b20218538