[DevTools] Inspector should allow resetting zoom level using the numpad0 key.

Source/devtools/front_end/inspector.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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
@@ skipping 680 matching lines @@
             }
             break;
         case 109: // -
         case 189: // -
             if (isValidZoomShortcut) {
                 WebInspector._zoomOut();
                 event.consume(true);
             }
             break;
         case 48: // 0
+        case 96: // Numpad 0
             // Zoom reset shortcut does not allow "Shift" when handled by the browser.
             if (isValidZoomShortcut && !event.shiftKey) {
                 WebInspector._resetZoom();
                 event.consume(true);
             }
             break;
     }
 
 }
 
@@ skipping 300 matching lines @@
 
 /**
  * @return {string}
  */
 WebInspector.getSelectionForegroundColor = function()
 {
     return InspectorFrontendHost.getSelectionForegroundColor();
 }
 
 window.DEBUG = true;