4 files changed, 36 insertions, 0 deletions
diff --git a/toolkit/system/androidproxy/nsAndroidSystemProxySettings.cpp b/toolkit/system/androidproxy/nsAndroidSystemProxySettings.cpp
index e60d0f3821..15dabfe14f 100644
--- a/toolkit/system/androidproxy/nsAndroidSystemProxySettings.cpp
+++ b/toolkit/system/androidproxy/nsAndroidSystemProxySettings.cpp
@@ -43,6 +43,12 @@ nsresult nsAndroidSystemProxySettings::GetProxyForURI(const nsACString& aSpec,
                                                           aPort, aResult);
 }
 
+NS_IMETHODIMP
+nsAndroidSystemProxySettings::GetSystemWPADSetting(bool* aSystemWPADSetting) {
+  *aSystemWPADSetting = false;
+  return NS_OK;
+}
+
 void test(){};
 
 NS_IMPL_COMPONENT_FACTORY(nsAndroidSystemProxySettings) {
diff --git a/toolkit/system/osxproxy/nsOSXSystemProxySettings.mm b/toolkit/system/osxproxy/nsOSXSystemProxySettings.mm
index b1ad41ccc1..27c7b47148 100644
--- a/toolkit/system/osxproxy/nsOSXSystemProxySettings.mm
+++ b/toolkit/system/osxproxy/nsOSXSystemProxySettings.mm
@@ -68,6 +68,12 @@ nsOSXSystemProxySettings::GetMainThreadOnly(bool* aMainThreadOnly) {
   return NS_OK;
 }
 
+NS_IMETHODIMP
+nsOSXSystemProxySettings::GetSystemWPADSetting(bool* aSystemWPADSetting) {
+  *aSystemWPADSetting = false;
+  return NS_OK;
+}
+
 // Mapping of URI schemes to SystemConfiguration keys
 const nsOSXSystemProxySettings::SchemeMapping
     nsOSXSystemProxySettings::gSchemeMappingList[] = {
@@ -400,6 +406,11 @@ OSXSystemProxySettingsAsync::GetPACURI(nsACString& aResult) {
 }
 
 NS_IMETHODIMP
+OSXSystemProxySettingsAsync::GetSystemWPADSetting(bool* aSystemWPADSetting) {
+  return nsOSXSystemProxySettings::GetSystemWPADSetting(aSystemWPADSetting);
+}
+
+NS_IMETHODIMP
 OSXSystemProxySettingsAsync::GetProxyForURI(const nsACString& aSpec,
                                             const nsACString& aScheme,
                                             const nsACString& aHost,
diff --git a/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp b/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp
index 1b6d6223c4..4c84041ef3 100644
--- a/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp
+++ b/toolkit/system/unixproxy/nsUnixSystemProxySettings.cpp
@@ -398,6 +398,12 @@ nsresult nsUnixSystemProxySettings::GetProxyForURI(const nsACString& aSpec,
   return GetProxyFromEnvironment(aScheme, aHost, aPort, aResult);
 }
 
+NS_IMETHODIMP
+nsUnixSystemProxySettings::GetSystemWPADSetting(bool* aSystemWPADSetting) {
+  *aSystemWPADSetting = false;
+  return NS_OK;
+}
+
 NS_IMPL_COMPONENT_FACTORY(nsUnixSystemProxySettings) {
   auto result = MakeRefPtr<nsUnixSystemProxySettings>();
   result->Init();
diff --git a/toolkit/system/windowsproxy/nsWindowsSystemProxySettings.cpp b/toolkit/system/windowsproxy/nsWindowsSystemProxySettings.cpp
index 7921cb60a2..94487505c3 100644
--- a/toolkit/system/windowsproxy/nsWindowsSystemProxySettings.cpp
+++ b/toolkit/system/windowsproxy/nsWindowsSystemProxySettings.cpp
@@ -241,6 +241,19 @@ nsresult nsWindowsSystemProxySettings::GetProxyForURI(const nsACString& aSpec,
   return NS_OK;
 }
 
+NS_IMETHODIMP nsWindowsSystemProxySettings::GetSystemWPADSetting(
+    bool* aSystemWPADSetting) {
+  nsresult rv;
+  uint32_t flags = 0;
+  nsAutoString buf;
+
+  rv = ReadInternetOption(INTERNET_PER_CONN_AUTOCONFIG_URL, flags, buf);
+  *aSystemWPADSetting =
+      (flags & (PROXY_TYPE_AUTO_PROXY_URL | PROXY_TYPE_AUTO_DETECT)) ==
+      PROXY_TYPE_AUTO_DETECT;
+  return rv;
+}
+
 NS_IMPL_COMPONENT_FACTORY(nsWindowsSystemProxySettings) {
   return mozilla::MakeAndAddRef<nsWindowsSystemProxySettings>()
       .downcast<nsISupports>();