Remove lots of dead web/ classes.

sky/engine/core/frame/UseCounter.h

 /*
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 48 matching lines @@
     ~UseCounter();
 
     enum Feature {
         // Do not change assigned numbers of existing items: add new features
         // to the end of the list.
         PageDestruction = 0,
         PrefixedIndexedDB = 3,
         WorkerStart = 4,
         SharedWorkerStart = 5,
         UnprefixedIndexedDB = 9,
-        OpenWebDatabase = 10,
         UnprefixedRequestAnimationFrame = 13,
         PrefixedRequestAnimationFrame = 14,
         PrefixedTransitionEndEvent = 18,
         UnprefixedTransitionEndEvent = 19,
         PrefixedAndUnprefixedTransitionEndEvent = 20,
         AutoFocusAttribute = 21,
         DataListElement = 23,
         FormAttribute = 24,
         IncrementalAttribute = 25,
         InputTypeColor = 26,
@@ skipping 151 matching lines @@
         ElementAnimateKeyframeListEffectNoTiming = 294,
         AttrGetValue = 298,
         AttrSetValue = 299,
         AnimationConstructorKeyframeListEffectObjectTiming = 300,
         AnimationConstructorKeyframeListEffectDoubleTiming = 301,
         AnimationConstructorKeyframeListEffectNoTiming = 302,
         AttrSetValueWithElement = 303,
         PrefixedCancelAnimationFrame = 304,
         PrefixedCancelRequestAnimationFrame = 305,
 
-        OpenWebDatabaseInWorker = 313, // This didn't work because of crbug.com/376039. Available since M37.
-        OpenWebDatabaseSyncInWorker = 314, // This didn't work because of crbug.com/376039. Available since M37.
         XHRProgressEventPosition = 316,
         XHRProgressEventTotalSize = 317,
         PrefixedDocumentIsFullscreen = 318,
         PrefixedDocumentFullScreenKeyboardInputAllowed = 319,
         PrefixedDocumentCurrentFullScreenElement = 320,
         PrefixedDocumentCancelFullScreen = 321,
         PrefixedDocumentFullscreenEnabled = 322,
         PrefixedDocumentFullscreenElement = 323,
         PrefixedDocumentExitFullscreen = 324,
         // The above items are available in M35 branch.
@@ skipping 216 matching lines @@
 
     void updateMeasurements();
 
     OwnPtr<BitVector> m_countBits;
     BitVector m_CSSFeatureBits;
 };
 
 } // namespace blink
 
 #endif // UseCounter_h