Enable text-align-last property, by default.

Source/core/css/parser/CSSParserFastPaths.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/css/parser/CSSParserFastPaths.h"
 
 #include "core/StylePropertyShorthand.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSValuePool.h"
@@ skipping 565 matching lines @@
     case CSSPropertySpeak: // none | normal | spell-out | digits | literal-punctuation | no-punctuation
         return valueID == CSSValueNone || valueID == CSSValueNormal || valueID == CSSValueSpellOut || valueID == CSSValueDigits || valueID == CSSValueLiteralPunctuation || valueID == CSSValueNoPunctuation;
     case CSSPropertyStrokeLinejoin:
         return valueID == CSSValueMiter || valueID == CSSValueRound || valueID == CSSValueBevel;
     case CSSPropertyStrokeLinecap:
         return valueID == CSSValueButt || valueID == CSSValueRound || valueID == CSSValueSquare;
     case CSSPropertyTableLayout: // auto | fixed
         return valueID == CSSValueAuto || valueID == CSSValueFixed;
     case CSSPropertyTextAlignLast:
         // auto | start | end | left | right | center | justify
-        ASSERT(RuntimeEnabledFeatures::css3TextEnabled());
         return (valueID >= CSSValueLeft && valueID <= CSSValueJustify) || valueID == CSSValueStart || valueID == CSSValueEnd || valueID == CSSValueAuto;
     case CSSPropertyTextAnchor:
         return valueID == CSSValueStart || valueID == CSSValueMiddle || valueID == CSSValueEnd;
     case CSSPropertyTextDecorationStyle:
         // solid | double | dotted | dashed | wavy
         ASSERT(RuntimeEnabledFeatures::css3TextDecorationsEnabled());
         return valueID == CSSValueSolid || valueID == CSSValueDouble || valueID == CSSValueDotted || valueID == CSSValueDashed || valueID == CSSValueWavy;
     case CSSPropertyTextJustify:
         // auto | none | inter-word | distribute
         ASSERT(RuntimeEnabledFeatures::css3TextEnabled());
@@ skipping 416 matching lines @@
     if (isColorPropertyID(propertyID))
         return parseColor(string, parserMode);
     if (RefPtrWillBeRawPtr<CSSValue> keyword = parseKeywordValue(propertyID, string))
         return keyword.release();
     if (RefPtrWillBeRawPtr<CSSValue> transform = parseSimpleTransform(propertyID, string))
         return transform.release();
     return nullptr;
 }
 
 } // namespace blink