DevTools: only set title w/ shortcut via Tooltip manager API.

Source/devtools/front_end/elements/StylesPopoverHelper.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
  * @extends {WebInspector.Object}
  */
 WebInspector.StylesPopoverHelper = function()
 {
@@ skipping 145 matching lines @@
     {
         return this._element;
     },
 
     /**
      * @param {string} text
      */
     _createDOM: function(text)
     {
         this._element = createElement("nobr");
-        WebInspector.Tooltip.install(this._element, WebInspector.UIString("Open cubic bezier editor"));
+        this._element.title = WebInspector.UIString("Open cubic bezier editor");
 
         this._iconElement = this._element.createSVGChild("svg", "popover-icon bezier-icon");
         this._iconElement.setAttribute("height", 10);
         this._iconElement.setAttribute("width", 10);
         this._iconElement.addEventListener("click", this._iconClick.bind(this), false);
         var g = this._iconElement.createSVGChild("g");
         var path = g.createSVGChild("path");
         path.setAttribute("d", "M2,8 C2,3 8,7 8,2");
 
         this._bezierValueElement = this._element.createChild("span");
@@ skipping 53 matching lines @@
  */
 WebInspector.ColorSwatchPopoverIcon = function(treeElement, stylesPopoverHelper, colorText)
 {
     this._treeElement = treeElement;
     this._stylesPopoverHelper = stylesPopoverHelper;
 
     this._swatch = WebInspector.ColorSwatch.create();
     this._swatch.setColorText(colorText);
     this._swatch.setFormat(WebInspector.ColorSwatchPopoverIcon._colorFormat(this._swatch.color()));
     var shiftClickMessage = WebInspector.UIString("Shift + Click to change color format.");
-    WebInspector.Tooltip.install(this._swatch.iconElement(), WebInspector.UIString("Open color picker. %s", shiftClickMessage));
+    this._swatch.iconElement().title = WebInspector.UIString("Open color picker. %s", shiftClickMessage);
     this._swatch.iconElement().addEventListener("click", this._iconClick.bind(this));
     this._contrastColor = null;
 
     this._boundSpectrumChanged = this._spectrumChanged.bind(this);
 }
 
 /**
  * @param {!WebInspector.Color} color
  * @return {!WebInspector.Color.Format}
  */
@@ skipping 88 matching lines @@
     {
         this._spectrum.removeEventListener(WebInspector.Spectrum.Events.ColorChanged, this._boundSpectrumChanged);
         delete this._spectrum;
 
         var propertyText = commitEdit ? this._treeElement.renderedPropertyText() : this._originalPropertyText;
         this._treeElement.applyStyleText(propertyText, true);
         this._treeElement.parentPane().setEditingStyle(false);
         delete this._originalPropertyText;
     }
 }