DevTools: Adopt nbsp as unit & thousands separator for broader font support

third_party/WebKit/Source/devtools/front_end/timeline/TimelineFlameChartDataProvider.js

 /*
  * Copyright (C) 2014 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 462 matching lines @@
         time = Math.abs(totalTime - selfTime) > eps && selfTime > eps ?
             Common.UIString(
                 '%s (self %s)', Number.millisToString(totalTime, true), Number.millisToString(selfTime, true)) :
             Number.millisToString(totalTime, true);
       }
       title = this.entryTitle(entryIndex);
       warning = Timeline.TimelineUIUtils.eventWarning(event);
     } else if (type === Timeline.TimelineFlameChartEntryType.Frame) {
       var frame = /** @type {!TimelineModel.TimelineFrame} */ (this._entryData[entryIndex]);
       time = Common.UIString(
-          '%s ~ %.0f\u2009fps', Number.preciseMillisToString(frame.duration, 1), (1000 / frame.duration));
+          '%s ~ %.0f\xa0fps', Number.preciseMillisToString(frame.duration, 1), (1000 / frame.duration));
       title = frame.idle ? Common.UIString('Idle Frame') : Common.UIString('Frame');
       if (frame.hasWarnings()) {
         warning = createElement('span');
         warning.textContent = Common.UIString('Long frame');
       }
     } else {
       return null;
     }
     var element = createElement('div');
     var root = UI.createShadowRootWithCoreStyles(element, 'timeline/timelineFlamechartPopover.css');
@@ skipping 398 matching lines @@
    */
   eventByIndex(entryIndex) {
     return this._entryType(entryIndex) === Timeline.TimelineFlameChartEntryType.Event ?
         /** @type {!SDK.TracingModel.Event} */ (this._entryData[entryIndex]) :
         null;
   }
 };
 
 Timeline.TimelineFlameChartDataProvider.InstantEventVisibleDurationMs = 0.001;
 Timeline.TimelineFlameChartDataProvider._indexSymbol = Symbol('index');