Devtools UI: Remove redundant tooltips

Source/devtools/front_end/elements/ElementsBreadcrumbs.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.HBox}
  */
 WebInspector.ElementsBreadcrumbs = function()
 {
@@ skipping 159 matching lines @@
                     break;
 
                 default:
                     crumbTitle = current.nodeNameInCorrectCase();
             }
 
             if (!crumb.childNodes.length) {
                 var nameElement = createElement("span");
                 nameElement.textContent = crumbTitle;
                 crumb.appendChild(nameElement);
-                crumb.title = crumbTitle;

[paulirish, 2015/07/30 07:20:49]

since the breadcrumb list is often "div > div > div > div" you can hover to get
a resolved selector which helps you understand which exact div each one is.

[samli, 2015/07/30 08:02:33]

DOMPresentationUtils is the one you're looking at.
This one is actually for things like "<DOCTYPE>". As you can see on 178, this is
always on the screen anyway.

[samli, 2015/08/06 03:51:16]

Reverted.

             }
 
             if (current === currentDOMNode)
                 crumb.classList.add("selected");
             crumbs.insertBefore(crumb, crumbs.firstChild);
         }
 
         this.updateSizes();
     },
 
@@ skipping 236 matching lines @@
         compact(selectedCrumb);
         if (crumbsAreSmallerThanContainer())
             return;
 
         // Collapse the selected crumb as a last resort. Pass true to prevent coalescing.
         collapse(selectedCrumb, true);
     },
 
     __proto__: WebInspector.HBox.prototype
 }