[WebVTT] Rename Middle to Center

third_party/WebKit/Source/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 288 matching lines @@
     SelectionModify = 405,
     SelectionSetBaseAndExtent = 406,
     SelectionEmpty = 407,
     VTTCue = 409,
     VTTCueRender = 410,
     VTTCueRenderVertical = 411,
     VTTCueRenderSnapToLinesFalse = 412,
     VTTCueRenderLineNotAuto = 413,
     VTTCueRenderPositionNot50 = 414,
     VTTCueRenderSizeNot100 = 415,
-    VTTCueRenderAlignNotMiddle = 416,
+    VTTCueRenderAlignNotCenter = 416,
     // The above items are available in M36 branch.
 
     ElementRequestPointerLock = 417,
     VTTCueRenderRtl = 418,
     PostMessageFromSecureToInsecure = 419,
     PostMessageFromInsecureToSecure = 420,
     DocumentExitPointerLock = 421,
     DocumentPointerLockElement = 422,
     PrefixedCursorZoomIn = 424,
     PrefixedCursorZoomOut = 425,
@@ skipping 1247 matching lines @@
     // Tracks what features/properties need to be reported to the legacy
     // histograms.
     BitVector m_featureBits;
     BitVector m_CSSBits;
   } m_legacyCounter;
 };
 
 }  // namespace blink
 
 #endif  // UseCounter_h