Implement position: sticky updates on compositor

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

 /*
  * Copyright (C) 2013 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 46 matching lines @@
  */
 WebInspector.LayerDetailsView.CompositingReasonDetail = {
     "transform3D": WebInspector.UIString("Composition due to association with an element with a CSS 3D transform."),
     "video": WebInspector.UIString("Composition due to association with a <video> element."),
     "canvas": WebInspector.UIString("Composition due to the element being a <canvas> element."),
     "plugin": WebInspector.UIString("Composition due to association with a plugin."),
     "iFrame": WebInspector.UIString("Composition due to association with an <iframe> element."),
     "backfaceVisibilityHidden": WebInspector.UIString("Composition due to association with an element with a \"backface-visibility: hidden\" style."),
     "animation": WebInspector.UIString("Composition due to association with an animated element."),
     "filters": WebInspector.UIString("Composition due to association with an element with CSS filters applied."),
-    "positionFixed": WebInspector.UIString("Composition due to association with an element with a \"position: fixed\" style."),
-    // FIXME: Can we remove this entry now that position: sticky has been removed?
-    "positionSticky": WebInspector.UIString("Composition due to association with an element with a \"position: sticky\" style."),
+    "scrollDependentPosition": WebInspector.UIString("Composition due to association with an element with a \"position: fixed\" or \"position: sticky\" style."),
     "overflowScrollingTouch": WebInspector.UIString("Composition due to association with an element with a \"overflow-scrolling: touch\" style."),
     "blending": WebInspector.UIString("Composition due to association with an element that has blend mode other than \"normal\"."),
     "assumedOverlap": WebInspector.UIString("Composition due to association with an element that may overlap other composited elements."),
     "overlap": WebInspector.UIString("Composition due to association with an element overlapping other composited elements."),
     "negativeZIndexChildren": WebInspector.UIString("Composition due to association with an element with descendants that have a negative z-index."),
     "transformWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with composited descendants."),
     "opacityWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with opacity applied and composited descendants."),
     "maskWithCompositedDescendants": WebInspector.UIString("Composition due to association with a masked element and composited descendants."),
     "reflectionWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with a reflection and composited descendants."),
     "filterWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with CSS filters applied and composited descendants."),
@@ skipping 137 matching lines @@
             var text = WebInspector.LayerDetailsView.CompositingReasonDetail[compositingReasons[i]] || compositingReasons[i];
             // If the text is more than one word but does not terminate with period, add the period.
             if (/\s.*[^.]$/.test(text))
                 text += ".";
             list.createChild("li").textContent = text;
         }
     },
 
     __proto__: WebInspector.Widget.prototype
 }