DevTools: fix object popover title

third_party/WebKit/Source/devtools/front_end/object_ui/ObjectPopoverHelper.js

Index: third_party/WebKit/Source/devtools/front_end/object_ui/ObjectPopoverHelper.js
diff --git a/third_party/WebKit/Source/devtools/front_end/object_ui/ObjectPopoverHelper.js b/third_party/WebKit/Source/devtools/front_end/object_ui/ObjectPopoverHelper.js
index 946b79db4e5214510523de34f54807075bbcc6d8..f2df77df5cc72c1fffa66b39658bb80bf8aa3b8f 100644
--- a/third_party/WebKit/Source/devtools/front_end/object_ui/ObjectPopoverHelper.js
+++ b/third_party/WebKit/Source/devtools/front_end/object_ui/ObjectPopoverHelper.js
@@ -157,8 +157,8 @@ ObjectUI.ObjectPopoverHelper = class extends UI.PopoverHelper {
         } else {
           popoverContentElement = createElement('div');
           UI.appendStyle(popoverContentElement, 'object_ui/objectPopover.css');
-          this._titleElement = popoverContentElement.createChild('div', 'monospace');
-          this._titleElement.createChild('span', 'object-popover-title').textContent = description;
+          this._titleElement = popoverContentElement.createChild('div', 'monospace object-popover-title');
+          this._titleElement.createChild('span').textContent = description;
           var section = new ObjectUI.ObjectPropertiesSection(result, '', this._lazyLinkifier());
           section.element.classList.add('object-popover-tree');
           section.titleLessMode();