DevTools: show alternate title onexpand of object in console

third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js

Index: third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js
diff --git a/third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js b/third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js
index de5cc8f1c0b8e4a70a18ab5c56d078fe933d13c0..816fc54f923df78d0b8323f7369efeb9e60a1c05 100644
--- a/third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js
+++ b/third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js
@@ -436,7 +436,14 @@ WebInspector.ConsoleViewMessage.prototype = {
         note.classList.add("info-note");
         note.title = WebInspector.UIString("Object value at left was snapshotted when logged, value below was evaluated just now.");
 
-        var section = new WebInspector.ObjectPropertiesSection(obj, titleElement, this._linkifier);
+        var titleText = titleElement.deepTextContent();
+        var expandedTitleElement = null;
+        if (obj.description !== titleText && WebInspector.ObjectPropertiesSection.needsAlternateTitle(obj)) {
+            expandedTitleElement = createElement("span");
+            expandedTitleElement.createTextChild(obj.description || "");

[lushnikov, 2016/07/12 02:51:55]

let's just create a TextNode with obj.description || "" and pass it down to
ObjectPropertiesSection

[luoe, 2016/07/13 18:06:28]

One reason to keep expandedTitleElement an HTMLElement is that we can add the
snapshot-info-note on #435 as a child of the expandedTitleElement.  Then on
expand/collapse, the expandedTitleElement's children can be swapped in and out.

+        }
+
+        var section = new WebInspector.ObjectPropertiesSection(obj, titleElement, expandedTitleElement, this._linkifier);
         section.element.classList.add("console-view-object-properties-section");
         section.enableContextMenu();
         return section;