Web Inspector: show memory counter graphs in timeline panel

Web Inspector: show memory counter graphs in timeline panel
https://bugs.webkit.org/show_bug.cgi?id=76843

Timeline panel is extended with several graphs depicting total node count,
number of DOM groups and event listeners. This feature is hidden behind
experimental setting.

Reviewed by Pavel Feldman.

* English.lproj/localizedStrings.js:
* inspector/Inspector.json:
* inspector/InspectorController.cpp:
(WebCore::InspectorController::InspectorController):
* inspector/InspectorTimelineAgent.cpp:
(WebCore::InspectorTimelineAgent::setDomCountersEnabled):
(WebCore::InspectorTimelineAgent::didCallFunction):
(WebCore::InspectorTimelineAgent::didDispatchEvent):
(WebCore::InspectorTimelineAgent::didWriteHTML):
(WebCore::InspectorTimelineAgent::didFireTimer):
(WebCore::InspectorTimelineAgent::didEvaluateScript):
(WebCore::InspectorTimelineAgent::setHeapSizeStatistic):
(WebCore::InspectorTimelineAgent::collectDomCounters):
(WebCore::InspectorTimelineAgent::InspectorTimelineAgent):
* inspector/InspectorTimelineAgent.h:
(WebCore::InspectorTimelineAgent::create):
* inspector/TimelineRecordFactory.cpp:
* inspector/front-end/Settings.js:
(WebInspector.ExperimentsSettings):
* inspector/front-end/TimelinePanel.js:
(WebInspector.TimelinePanel):
(WebInspector.MemoryStatistics):
(WebInspector.MemoryStatistics.prototype.setTopPosition):
(WebInspector.MemoryStatistics.prototype.setSidebarWidth):
(WebInspector.MemoryStatistics.prototype._sidebarResized):
(WebInspector.MemoryStatistics.prototype._updateSize):
(WebInspector.MemoryStatistics.prototype._updateSidebarSize):
(WebInspector.MemoryStatistics.prototype._createCounterSidebarElement):
(WebInspector.MemoryStatistics.prototype.addTimlineEvent):
(WebInspector.MemoryStatistics.prototype._draw.getGroupCount):
(WebInspector.MemoryStatistics.prototype._draw.getNodeCount):
(WebInspector.MemoryStatistics.prototype._draw.getListenerCount):
(WebInspector.MemoryStatistics.prototype._draw):
(WebInspector.MemoryStatistics.prototype._calculateVisibleIndexes):
(WebInspector.MemoryStatistics.prototype._onMouseOver):
(WebInspector.MemoryStatistics.prototype._refreshCurrentValues):
(WebInspector.MemoryStatistics.prototype.visible):
(WebInspector.MemoryStatistics.prototype.show):
(WebInspector.MemoryStatistics.prototype.refresh):
(WebInspector.MemoryStatistics.prototype.hide):
(WebInspector.MemoryStatistics.prototype._setVerticalClip):
(WebInspector.MemoryStatistics.prototype._calculateXValues):
(WebInspector.MemoryStatistics.prototype._drawPolyline):
(WebInspector.MemoryStatistics.prototype._drawBottomBound):
(WebInspector.MemoryStatistics.prototype._clear):
(WebInspector.TimelinePanel.prototype._startSplitterDragging):
(WebInspector.TimelinePanel.prototype._splitterDragging):
(WebInspector.TimelinePanel.prototype._endSplitterDragging):
(WebInspector.TimelinePanel.prototype._setSplitterPosition):
(WebInspector.TimelinePanel.prototype.get statusBarItems):
(WebInspector.TimelinePanel.prototype._createStatusbarButtons):
(WebInspector.TimelinePanel.prototype._toggleMemoryStatistics):
(WebInspector.TimelinePanel.prototype._onTimelineEventRecorded):
(WebInspector.TimelinePanel.prototype.sidebarResized):
(WebInspector.TimelinePanel.prototype._refresh):
* inspector/front-end/timelinePanel.css:
(#timeline-memory-splitter):
(#memory-counters-graph):
(#memory-graphs-container):
(#memory-graphs-container .split-view-contents):
(.timeline-marker):
(.memory-counter-sidebar-info):
(.memory-counter-sidebar-info.bottom-border-visible):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105877 268f45cc-cd09-0410-ab3c-d52691b4dbfc