replace COMPILE_ASSERT with static assert in core/css/

Source/core/css/resolver/AnimatedStyleBuilder.cpp

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 68 matching lines @@
         return BorderImageLength(toAnimatableLength(value)->length(state.style()->effectiveZoom(), ValueRangeNonNegative));
     if (value->isDouble())
         return BorderImageLength(clampTo<double>(toAnimatableDouble(value)->toDouble(), 0));
     RefPtrWillBeRawPtr<CSSValue> cssValue = toAnimatableUnknown(value)->toCSSValue();
     CSSPrimitiveValue* cssPrimitiveValue = toCSSPrimitiveValue(cssValue.get());
     return BorderImageLength(cssPrimitiveValue->convertToLength<AnyConversion>(state.cssToLengthConversionData()));
 }
 
 template<typename T> T animatableValueRoundClampTo(const AnimatableValue* value, T min = defaultMinimumForClamp<T>(), T max = defaultMaximumForClamp<T>())
 {
-    COMPILE_ASSERT(WTF::IsInteger<T>::value, ShouldUseIntegralTypeTWhenRoundingValues);
+    static_assert(WTF::IsInteger<T>::value, "should use integral type T when rounding values");
     return clampTo<T>(round(toAnimatableDouble(value)->toDouble()), min, max);
 }
 
 LengthBox animatableValueToLengthBox(const AnimatableValue* value, const StyleResolverState& state, ValueRange range = ValueRangeAll)
 {
     const AnimatableLengthBox* animatableLengthBox = toAnimatableLengthBox(value);
     return LengthBox(
         animatableValueToLength(animatableLengthBox->top(), state, range),
         animatableValueToLength(animatableLengthBox->right(), state, range),
         animatableValueToLength(animatableLengthBox->bottom(), state, range),
@@ skipping 524 matching lines @@
         return;
     case CSSPropertyZoom:
         style->setZoom(clampTo<float>(toAnimatableDouble(value)->toDouble(), std::numeric_limits<float>::denorm_min()));
         return;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace blink