229296 2021-08-19 10:14:41 -0700 [win] Intermittent build failure in InspectorCSSAgent.cpp 'Backdrop': undeclared identifier 2021-08-26 10:15:23 -0700 1 1 1 Unclassified WebKit Tools / Tests Other Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=227801 InRadar P2 Normal --- 1 aakash_jain webkit-unassigned koivisto ntim ryanhaddad webkit-bug-importer oldest_to_newest 1785507 0 aakash_jain 2021-08-19 10:14:41 -0700 Noticing this intermittent build failure on windows in InspectorCSSAgent.cpp 'Backdrop': undeclared identifier. WebCore\inspector/agents/InspectorCSSAgent.cpp(453,41): error C2838: 'Backdrop': illegal qualified name in member declaration WebCore\inspector/agents/InspectorCSSAgent.cpp(453,49): error C2065: 'Backdrop': undeclared identifier This is causing false positives on windows-ews. e.g.: https://ews-build.webkit.org/#/builders/10/builds/101698 https://ews-build.webkit.org/#/builders/10/builds/101870 https://ews-build.webkit.org/#/builders/10/builds/101867 https://ews-build.webkit.org/#/builders/10/builds/101855 https://build.webkit.org/#/builders/56/builds/4022 1785591 1 ryanhaddad 2021-08-19 15:15:17 -0700 Presumably this is related to https://trac.webkit.org/changeset/281229/webkit? 1785592 2 ryanhaddad 2021-08-19 15:15:57 -0700 There hasn't been a build failure on trunk bots since the one linked above, so maybe this had something to do with incremental builds? 1787663 3 webkit-bug-importer 2021-08-26 10:15:23 -0700 <rdar://problem/82396065>