Implement the discrete Network timeline view.

https://bugs.webkit.org/show_bug.cgi?id=127022

Reviewed by Joseph Pecoraro.

* UserInterface/DataGrid.js:
(WebInspector.DataGrid): Align the labels of the column headers to match the data.
(WebInspector.DataGridNode.prototype.get selectable): Prevent selection when hidden.

* UserInterface/DetailsSection.css:
(.details-section > .header): Bump the font size to match data grid header sizes.

* UserInterface/Main.html: Add new files.

* UserInterface/NetworkTimelineView.css: Added.
(.timeline-view.network > .data-grid):
(.sidebar > .panel.timeline.timeline-content-view-showing > .content .item.resource .subtitle):
Hide the domain subtitle when the content view is showing which also has the domain.

* UserInterface/NetworkTimelineView.js: Added.
(WebInspector.NetworkTimelineView):
(WebInspector.NetworkTimelineView.prototype.get navigationSidebarTreeOutlineLabel):
(WebInspector.NetworkTimelineView.prototype.shown):
(WebInspector.NetworkTimelineView.prototype.hidden):
(WebInspector.NetworkTimelineView.prototype.updateLayout):
(WebInspector.NetworkTimelineView.prototype.matchTreeElementAgainstCustomFilters):
(WebInspector.NetworkTimelineView.prototype._networkTimelineRecordAdded):
(WebInspector.NetworkTimelineView.prototype._dataGridFiltersDidChange):
(WebInspector.NetworkTimelineView.prototype._treeElementSelected):

* UserInterface/ResourceTimelineDataGridNode.js:
(WebInspector.ResourceTimelineDataGridNode.prototype._needsRefresh):
Call dataGridNodeNeedsRefresh on the TimelineDataGrid so things can be batched with
one request animation frame.

* UserInterface/TimelineContentView.js:
(WebInspector.TimelineContentView): Create a NetworkTimelineView.
(WebInspector.TimelineContentView.prototype.matchTreeElementAgainstCustomFilters):

* UserInterface/TimelineDataGrid.css:
(.data-grid.timeline table):
(.data-grid.timeline th):
(.data-grid.timeline th:not(:last-child)):
(.data-grid.timeline th.sortable:active):
(.data-grid.timeline th.sort-descending):
(.data-grid.timeline .data-container):
(.data-grid.timeline td):
(.data-grid.timeline td:last-child):
(.data-grid.timeline td:not(:last-child)):
(.data-grid.timeline:focus tr.selected td:not(:last-child)):
(.data-grid.timeline th.sort-descending > div:first-child):
(.data-grid.timeline th.sort-descending > div:first-child::after):
(.data-grid.timeline td.error):
(.data-grid.timeline tr.selected td.error):
(.data-grid.timeline > .navigation-bar-container):
(.data-grid.timeline:hover > .navigation-bar-container):
(.data-grid.timeline > .navigation-bar-container > .navigation-bar):

* UserInterface/TimelineDataGrid.js:
(WebInspector.TimelineDataGrid):
(WebInspector.TimelineDataGrid.createColumnScopeBar):
(WebInspector.TimelineDataGrid.prototype.reset):
(WebInspector.TimelineDataGrid.prototype.shown):
(WebInspector.TimelineDataGrid.prototype.hidden):
(WebInspector.TimelineDataGrid.prototype.callFramePopoverAnchorElement):
(WebInspector.TimelineDataGrid.prototype.updateLayout):
(WebInspector.TimelineDataGrid.prototype.treeElementMatchesActiveScopeFilters):
(WebInspector.TimelineDataGrid.prototype.addRowInSortOrder):
(WebInspector.TimelineDataGrid.prototype.shouldIgnoreSelectionEvent):
(WebInspector.TimelineDataGrid.prototype.dataGridNodeNeedsRefresh):
(WebInspector.TimelineDataGrid.prototype._refreshDirtyDataGridNodes):
(WebInspector.TimelineDataGrid.prototype._sort):
(WebInspector.TimelineDataGrid.prototype._sortComparator):
Add support for sorting, batch refresh and managing of a TreeOutlineDataGridSynchronizer.

* UserInterface/TimelineSidebarPanel.css:
(.sidebar > .panel.timeline > .title-bar): Bump the font size to match data grid header sizes.

* UserInterface/TimelineView.js:
(WebInspector.TimelineView.prototype.matchTreeElementAgainstCustomFilters): Added stub.

* UserInterface/TreeOutlineDataGridSynchronizer.js:
(WebInspector.TreeOutlineDataGridSynchronizer.prototype.get treeOutline):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype.get dataGrid):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype.get enabled):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype.set enabled):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype.treeElementForDataGridNode):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype.dataGridNodeForTreeElement):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeOutlineScrolled):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._dataGridScrolled):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._dataGridNodeSelected):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._dataGridNodeExpanded):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._dataGridNodeCollapsed):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeElementSelected):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeElementAdded):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeElementRemoved):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeElementExpanded):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeElementCollapsed):
(WebInspector.TreeOutlineDataGridSynchronizer.prototype._treeElementHiddenChanged):
Added support for disabling the synchronizer when the client can do a better job.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@162415 268f45cc-cd09-0410-ab3c-d52691b4dbfc