In http://searchfox.org/mozilla-central/source/ipc/mscom/ProxyStream.cpp#312 , ActivationContext is only declared if: > #if defined(ACCESSIBILITY) && defined(MOZ_CRASHREPORTER) > #include "mozilla/mscom/ActivationContext.h" But if we build with only CrashReporter and not Accessibility, we get an error. Inside of ProxyStream::ProxyStream() (http://searchfox.org/mozilla-central/source/ipc/mscom/ProxyStream.cpp#272 ) it would be easy to add defined(ACCESSIBILITY) to the guards if that is the correct approach.

Hey Aaron, let me know if you would like me to write a patch that adds the guards (or anything else) or if this is a dupe.

This was either a duplicate of something, or was fixed intentionally or accidentally somewhere else, as it no longer hits.

--disable-accessibility with --enable-crashreporter is actually still causing this error: > /builds/worker/workspace/build/src/ipc/mscom/ProxyStream.cpp: In lambda function: > /builds/worker/workspace/build/src/ipc/mscom/ProxyStream.cpp:347:5: error: 'ActivationContext' has not been declared > ActivationContext::GetCurrentManifestPath(manifestPath); > ^~~~~~~~~~~~~~~~~ Will try to redo this patch....

Breaking try run: https://treeherder.mozilla.org/#/jobs?repo=try&revision=94cc5be50903d796d721eb9f075f06460e6f5bb2&selectedJob=139964491 Maybe this fixes it try run: https://treeherder.mozilla.org/#/jobs?repo=try&revision=0b2ead532689c3aa239b25333de31f7a35cab824

Comment on attachment 8912424 [details] Bug 1403358 Only reference ActivationContext if Acessibility is enabled https://reviewboard.mozilla.org/r/183742/#review201276

Pushed by aklotz@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/12f7bd502d4d Only reference ActivationContext if Acessibility is enabled r=aklotz