[Devtools] Added data to networking timeline canvas experiment

third_party/WebKit/Source/devtools/front_end/network/NetworkTimelineColumn.js

Index: third_party/WebKit/Source/devtools/front_end/network/NetworkTimelineColumn.js
diff --git a/third_party/WebKit/Source/devtools/front_end/network/NetworkTimelineColumn.js b/third_party/WebKit/Source/devtools/front_end/network/NetworkTimelineColumn.js
index 2bd1c76259bac2184824aa1f1eb9b0782475dcac..da9be2cb60a85b15ba04118a35acedecb11649f5 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/NetworkTimelineColumn.js
+++ b/third_party/WebKit/Source/devtools/front_end/network/NetworkTimelineColumn.js
@@ -24,9 +24,20 @@ WebInspector.NetworkTimelineColumn = function(networkLogView, dataGrid)
     this._networkLogView = networkLogView;
     /** @type {!Array<!WebInspector.NetworkRequest>} */
     this._requestData = [];
+    this.refreshData();
 }
 
 WebInspector.NetworkTimelineColumn.prototype = {
+    refreshData: function()

[dgozman, 2016/10/11 02:13:00]

Now I feel like passing DataGridNode to this function or even an array of
requests, and eliminate this._dataGrid entirely. WDYT?

+    {
+        var currentNode = this._dataGrid.rootNode();
+        this._requestData = [];
+        while (currentNode = currentNode.traverseNextNode(true))
+            this._requestData.push(currentNode.request());
+
+        this._update();
+    },
+
     scheduleUpdate: function()
     {
         if (this._updateRequestID)