Add use counter for CSS zoom:reset and zoom:document.

third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp

Index: third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
index 10f70dfae877c978858694ede4870cf67fa41850..c13aaa1d3caca3decbb465e06aa979d474b70ad2 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSPropertyParser.cpp
@@ -1081,11 +1081,16 @@ static CSSValue* consumeZoom(CSSParserTokenRange& range, const CSSParserContext&
         if (!zoom)
             zoom = consumeNumber(range, ValueRangeNonNegative);
     }
-    if (zoom && context.useCounter()
-        && !(token.id() == CSSValueNormal
+    if (zoom && context.useCounter()) {
+        if (!(token.id() == CSSValueNormal
             || (token.type() == NumberToken && zoom->getDoubleValue() == 1)
             || (token.type() == PercentageToken && zoom->getDoubleValue() == 100)))
-        context.useCounter()->count(UseCounter::CSSZoomNotEqualToOne);
+            context.useCounter()->count(UseCounter::CSSZoomNotEqualToOne);
+        if (token.id() == CSSValueReset)
+            context.useCounter()->count(UseCounter::CSSZoomReset);
+        if (token.id() == CSSValueDocument)
+            context.useCounter()->count(UseCounter::CSSZoomDocument);
+    }
     return zoom;
 }