DevTools: break words while wrapping tooltips if those don't contain spaces (long paths).

third_party/WebKit/Source/devtools/front_end/ui/Tooltip.js

 // Copyright (c) 2015 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
  * @param {!Document} doc
  */
 WebInspector.Tooltip = function(doc)
 {
@@ skipping 88 matching lines @@
             container = this.element.parentElement;
 
         // Posititon tooltip based on the anchor element.
         var containerOffset = container.offsetRelativeToWindow(this.element.window());
         var containerOffsetWidth = container.offsetWidth;
         var containerOffsetHeight = container.offsetHeight;
         var anchorBox = this._anchorElement.boxInWindow(this.element.window());
         const anchorOffset = 2;
         const pageMargin = 2;
         var cursorOffset = 10;
+        this._tooltipElement.classList.toggle("tooltip-breakword", !this._tooltipElement.textContent.match("\\s"));
         this._tooltipElement.style.maxWidth = (containerOffsetWidth - pageMargin * 2) + "px";
         this._tooltipElement.style.maxHeight = "";
         var tooltipWidth = this._tooltipElement.offsetWidth;
         var tooltipHeight = this._tooltipElement.offsetHeight;
         var anchorTooltipAtElement = this._anchorElement.nodeName === "BUTTON" || this._anchorElement.nodeName === "LABEL";
         var tooltipX = anchorTooltipAtElement ? anchorBox.x : event.x + cursorOffset;
         tooltipX = Number.constrain(tooltipX,
             containerOffset.x + pageMargin,
             containerOffset.x + containerOffsetWidth - tooltipWidth - pageMargin);
         var tooltipY;
@@ skipping 78 matching lines @@
 
     /**
      * @param {!Element|string} x
      * @this {!Element}
      */
     set: function(x)
     {
         WebInspector.Tooltip.install(this, x);
     }
 });