commit 40a17bafb1d1c647b2548c53cf948f900a43fae0
Author: Christoph Moench-Tegeder <cmt@burggraben.net>

    Bug 2040125 - add GetSystemProxyDirect() to libproxy path r=kershaw,valentin,#necko-reviewers
    
    In bmo #2028356 a "fast-path to skip proxy resolution[...]" was added,
    but the required method GetSystemProxyDirect() was not added for
    libproxy-enabled builds (all other cases - general Unix without
    libproxy, OSX, Windows - got that function).
    
    This makes a "--enable-libproxy" build (MOZ_ENABLE_LIBPROXY) fail at
    startup, as the symbol for nsUnixSystemProxySettings::GetSystemProxyDirect()
    does not resolve.
    
    This adds GetSystemProxyDirect() to the MOZ_ENABLE_LIBPROXY case - it's
    trivial, as we cannot know what libproxy will return for a specific URL,
    thus the fast-path does not apply and we can just return "false".
    
    Differential Revision: https://phabricator.services.mozilla.com/D300937

diff --git toolkit/system/unixproxy/nsLibProxySettings.cpp toolkit/system/unixproxy/nsLibProxySettings.cpp
index 3de1b7ce9b8f..8b063d446c1e 100644
--- toolkit/system/unixproxy/nsLibProxySettings.cpp
+++ toolkit/system/unixproxy/nsLibProxySettings.cpp
@@ -111,6 +111,13 @@ nsUnixSystemProxySettings::GetSystemWPADSetting(bool* aSystemWPADSetting) {
   return NS_OK;
 }
 
+// we do not know if libproxy would return DIRECT or PROXY
+NS_IMETHODIMP
+nsUnixSystemProxySettings::GetSystemProxyDirect(bool* aResult) {
+  *aResult = false;
+  return NS_OK;
+}
+
 NS_IMPL_COMPONENT_FACTORY(nsUnixSystemProxySettings) {
   return do_AddRef(new nsUnixSystemProxySettings()).downcast<nsISupports>();
 }