DevTools: Rename WI.Color's toString(format) -> asString(format)

Source/devtools/front_end/elements/MetricsSidebarPane.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 261 matching lines @@
 
             if (name === "margin" && noMarginDisplayType[style.getPropertyValue("display")])
                 continue;
             if (name === "padding" && noPaddingDisplayType[style.getPropertyValue("display")])
                 continue;
             if (name === "position" && noPositionType[style.getPropertyValue("position")])
                 continue;
 
             var boxElement = createElement("div");
             boxElement.className = name;
-            boxElement._backgroundColor = boxColors[i].toString(WebInspector.Color.Format.RGBA);
+            boxElement._backgroundColor = boxColors[i].asString(WebInspector.Color.Format.RGBA);
             boxElement._name = name;
             boxElement.style.backgroundColor = boxElement._backgroundColor;
             boxElement.addEventListener("mouseover", this._highlightDOMNode.bind(this, true, name === "position" ? "all" : name), false);
             this._boxElements.push(boxElement);
 
             if (name === "content") {
                 var widthElement = createElement("span");
                 widthElement.textContent = getContentAreaWidthPx(style);
                 widthElement.addEventListener("dblclick", this.startEditing.bind(this, widthElement, "width", "width", style), false);
 
@@ skipping 182 matching lines @@
     },
 
     editingCommitted: function(element, userInput, previousContent, context)
     {
         this.editingEnded(element, context);
         this._applyUserInput(element, userInput, previousContent, context, true);
     },
 
     __proto__: WebInspector.ElementsSidebarPane.prototype
 }