From 3458dde44f5693ef2c1c2ff8b056fc1f4022701d Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Sat, 26 Aug 2017 15:04:25 +0200
Subject: Add site-specific overrides and remove the overruling global.

---
 browser/components/nsBrowserGlue.js |  4 ++++
 dom/base/Navigator.cpp              | 10 ----------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/browser/components/nsBrowserGlue.js b/browser/components/nsBrowserGlue.js
index d69a11f6b..f97c173a0 100644
--- a/browser/components/nsBrowserGlue.js
+++ b/browser/components/nsBrowserGlue.js
@@ -64,6 +64,7 @@ XPCOMUtils.defineLazyServiceGetter(this, "AlertsService", "@mozilla.org/alerts-s
   ["Task", "resource://gre/modules/Task.jsm"],
   ["UITour", "resource:///modules/UITour.jsm"],
   ["URLBarZoom", "resource:///modules/URLBarZoom.jsm"],
+  ["UserAgentOverrides", "resource://gre/modules/UserAgentOverrides.jsm"],
   ["WebChannel", "resource://gre/modules/WebChannel.jsm"],
   ["WindowsRegistry", "resource://gre/modules/WindowsRegistry.jsm"],
   ["webrtcUI", "resource:///modules/webrtcUI.jsm"],
@@ -662,6 +663,8 @@ BrowserGlue.prototype = {
       }
     } catch (ex) { /* missing any of the prefs is not critical */ }
 
+    UserAgentOverrides.init();
+    
     PageThumbs.init();
     webrtcUI.init();
     AboutHome.init();
@@ -1042,6 +1045,7 @@ BrowserGlue.prototype = {
 
     BrowserUsageTelemetry.uninit();
     SelfSupportBackend.uninit();
+    UserAgentOverrides.uninit();
     PageThumbs.uninit();
     NewTabMessages.uninit();
     AboutNewTab.uninit();
diff --git a/dom/base/Navigator.cpp b/dom/base/Navigator.cpp
index 290af152b..8b20d0196 100644
--- a/dom/base/Navigator.cpp
+++ b/dom/base/Navigator.cpp
@@ -1854,16 +1854,6 @@ Navigator::GetUserAgent(nsPIDOMWindowInner* aWindow, nsIURI* aURI,
 {
   MOZ_ASSERT(NS_IsMainThread());
 
-  if (!aIsCallerChrome) {
-    const nsAdoptingString& override =
-      mozilla::Preferences::GetString("general.useragent.override");
-
-    if (override) {
-      aUserAgent = override;
-      return NS_OK;
-    }
-  }
-
   nsresult rv;
   nsCOMPtr<nsIHttpProtocolHandler>
     service(do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http", &rv));
-- 
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