Expose performance.memory in workers

Source/core/testing/InternalSettings.idl

 /*
  * Copyright (C) 2012 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:
  *
  * 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
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     // when the page cannot be accessed. (Such as during page tear-down.)
     [RaisesException] void setMockScrollbarsEnabled(boolean enabled);
     [RaisesException] void setTouchEventEmulationEnabled(boolean enabled);
     [RaisesException] void setStandardFontFamily(DOMString family, DOMString script);
     [RaisesException] void setSerifFontFamily(DOMString family, DOMString script);
     [RaisesException] void setSansSerifFontFamily(DOMString family, DOMString script);
     [RaisesException] void setFixedFontFamily(DOMString family, DOMString script);
     [RaisesException] void setCursiveFontFamily(DOMString family, DOMString script);
     [RaisesException] void setFantasyFontFamily(DOMString family, DOMString script);
     [RaisesException] void setPictographFontFamily(DOMString family, DOMString script);
+    [RaisesException] void setPreciseMemoryInfoEnabled(boolean enabled);
     [RaisesException] void setTextAutosizingEnabled(boolean enabled);
     [RaisesException] void setTextAutosizingWindowSizeOverride(long width, long height);
     [RaisesException] void setAccessibilityFontScaleFactor(float fontScaleFactor);
     [RaisesException] void setMediaTypeOverride(DOMString mediaTypeOverride);
     [RaisesException] void setEditingBehavior(DOMString behavior);
     [RaisesException] void setPasswordGenerationDecorationEnabled(boolean enabled);
     [RaisesException] void setImagesEnabled(boolean enabled);
     [RaisesException] void setDefaultVideoPosterURL(DOMString poster);
     [RaisesException] void setViewportEnabled(boolean enabled);
 
     // FIXME: This is a temporary flag and should be removed once accelerated
     // overflow scroll is ready (crbug.com/254111).
     [RaisesException] void setCompositorDrivenAcceleratedScrollingEnabled(boolean enabled);
 
     // FIXME: This is a temporary flag and should be removed once squashing is
     // ready (crbug.com/261605).
     [RaisesException] void setLayerSquashingEnabled(boolean enabled);
 
     // FIXME: The following are RuntimeEnabledFeatures and likely
     // cannot be changed after process start.  These setters should
     // be removed or moved onto internals.runtimeFlags:
     void setAuthorShadowDOMForAnyElementEnabled(boolean enabled);
     void setCSSExclusionsEnabled(boolean enabled);
     void setLangAttributeAwareFormControlUIEnabled(boolean enabled);
     void setOverlayScrollbarsEnabled(boolean enabled);
     void setStyleScopedEnabled(boolean enabled);
     void setExperimentalContentSecurityPolicyFeaturesEnabled(boolean enabled);
 };