Implement support for the 'transform-box' property

third_party/WebKit/Source/core/frame/UseCounter.cpp

 /*
  * 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 28 matching lines @@
 #include "platform/instrumentation/tracing/TraceEvent.h"
 #include "platform/weborigin/SchemeRegistry.h"
 
 namespace {
 
 int totalPagesMeasuredCSSSampleId() {
   return 1;
 }
 
 // Make sure update_use_counter_css.py was run which updates histograms.xml.
-constexpr int kMaximumCSSSampleId = 558;
+constexpr int kMaximumCSSSampleId = 559;
 
 }  // namespace
 
 namespace blink {
 
 int UseCounter::mapCSSPropertyIdToCSSSampleIdForHistogram(
     CSSPropertyID cssPropertyID) {
   switch (cssPropertyID) {
     // Begin at 2, because 1 is reserved for totalPagesMeasuredCSSSampleId.
     case CSSPropertyColor:
@@ skipping 1018 matching lines @@
     case CSSPropertyMaxInlineSize:
       return 554;
     case CSSPropertyMaxBlockSize:
       return 555;
     case CSSPropertyAliasLineBreak:
       return 556;
     case CSSPropertyPlaceContent:
       return 557;
     case CSSPropertyPlaceItems:
       return 558;
+    case CSSPropertyTransformBox:
+      return 559;
     // 1. Add new features above this line (don't change the assigned numbers of
     // the existing items).
     // 2. Update kMaximumCSSSampleId with the new maximum value.
     // 3. Run the update_use_counter_css.py script in
     // chromium/src/tools/metrics/histograms to update the UMA histogram names.
 
     case CSSPropertyInvalid:
       ASSERT_NOT_REACHED();
       return 0;
   }
@@ skipping 313 matching lines @@
     }
   }
 
   if (needsPagesMeasuredUpdate)
     cssPropertiesHistogram.count(totalPagesMeasuredCSSSampleId());
 
   m_CSSBits.clearAll();
 }
 
 }  // namespace blink