diff -up chromium-76.0.3809.100/third_party/blink/renderer/core/css/css_property_value_set.h.gcc-no-alignas chromium-76.0.3809.100/third_party/blink/renderer/core/css/css_property_value_set.h
--- chromium-76.0.3809.100/third_party/blink/renderer/core/css/css_property_value_set.h.gcc-no-alignas	2019-08-09 16:48:13.000000000 +0200
+++ chromium-76.0.3809.100/third_party/blink/renderer/core/css/css_property_value_set.h	2019-08-15 21:04:30.231532746 +0200
@@ -176,8 +176,8 @@ class CSSLazyPropertyParser
   DISALLOW_COPY_AND_ASSIGN(CSSLazyPropertyParser);
 };
 
-class CORE_EXPORT alignas(Member<const CSSValue>) alignas(
-    CSSPropertyValueMetadata) ImmutableCSSPropertyValueSet
+class CORE_EXPORT ALIGNAS(alignof(Member<const CSSValue>))
+    ALIGNAS(alignof(CSSPropertyValueMetadata)) ImmutableCSSPropertyValueSet
     : public CSSPropertyValueSet {
  public:
   ImmutableCSSPropertyValueSet(const CSSPropertyValue*,