DevTools: Use JS symbols instead of strings for eligible events.

third_party/WebKit/Source/devtools/front_end/components/Spectrum.js

 /*
  * Copyright (C) 2011 Brian Grinstead 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 171 matching lines @@
         this._innerSetColor(hsva,  "", undefined, WebInspector.Spectrum._ChangeSource.Other);
     }
 }
 
 WebInspector.Spectrum._ChangeSource = {
     Input: "Input",
     Model: "Model",
     Other: "Other"
 }
 
+/** @enum {symbol} */
 WebInspector.Spectrum.Events = {
-    ColorChanged: "ColorChanged",
-    SizeChanged: "SizeChanged"
+    ColorChanged: Symbol("ColorChanged"),
+    SizeChanged: Symbol("SizeChanged")
 };
 
 WebInspector.Spectrum._colorChipSize = 24;
 WebInspector.Spectrum._itemsPerPaletteRow = 8;
 
 WebInspector.Spectrum.prototype = {
     _updatePalettePanel: function()
     {
         this._palettePanel.removeChildren();
         var title = this._palettePanel.createChild("div", "palette-title");
@@ skipping 815 matching lines @@
     "#FFEB3B": ["#FFFDE7", "#FFF9C4", "#FFF59D", "#FFF176", "#FFEE58", "#FFEB3B", "#FDD835", "#FBC02D", "#F9A825", "#F57F17"],
     "#FFC107": ["#FFF8E1", "#FFECB3", "#FFE082", "#FFD54F", "#FFCA28", "#FFC107", "#FFB300", "#FFA000", "#FF8F00", "#FF6F00"],
     "#FF9800": ["#FFF3E0", "#FFE0B2", "#FFCC80", "#FFB74D", "#FFA726", "#FF9800", "#FB8C00", "#F57C00", "#EF6C00", "#E65100"],
     "#FF5722": ["#FBE9E7", "#FFCCBC", "#FFAB91", "#FF8A65", "#FF7043", "#FF5722", "#F4511E", "#E64A19", "#D84315", "#BF360C"],
     "#795548": ["#EFEBE9", "#D7CCC8", "#BCAAA4", "#A1887F", "#8D6E63", "#795548", "#6D4C41", "#5D4037", "#4E342E", "#3E2723"],
     "#9E9E9E": ["#FAFAFA", "#F5F5F5", "#EEEEEE", "#E0E0E0", "#BDBDBD", "#9E9E9E", "#757575", "#616161", "#424242", "#212121"],
     "#607D8B": ["#ECEFF1", "#CFD8DC", "#B0BEC5", "#90A4AE", "#78909C", "#607D8B", "#546E7A", "#455A64", "#37474F", "#263238"]
 };
 
 WebInspector.Spectrum.MaterialPalette = { title: "Material", mutable: false, matchUserFormat: true, colors: Object.keys(WebInspector.Spectrum.MaterialPaletteShades) };