www/firefox: update to 57.0 (marketed as "Firefox Quantum")

Not a MFH candidate due to POLA violation per redesigned UI, broken
legacy addons and auto-reviewed new addons.

Changes:	https://www.mozilla.org/firefox/57.0/releasenotes/
PR:		222693
Tested by:	pi, tobik, TrueOS

1 files changed, 0 insertions, 37 deletions

diff --git a/www/firefox/files/patch-bug1375146 b/www/firefox/files/patch-bug1375146
deleted file mode 100644
index aa742fd01adb..000000000000
--- a/www/firefox/files/patch-bug1375146
+++ /dev/null
@@ -1,37 +0,0 @@
-commit b481800095d4
-Author: Stone Shih <sshih@mozilla.com>
-Date:   Tue Sep 19 15:41:52 2017 +0800
-
-    Bug 1375146 - Revise sending drag event. r=smaug, a=ritu
-    
-    --HG--
-    extra : source : d4496b8befbf0ef5ae124a9fbda37ad5b885f9e1
----
- dom/events/EventStateManager.cpp | 7 ++++---
- 1 file changed, 4 insertions(+), 3 deletions(-)
-
-diff --git dom/events/EventStateManager.cpp dom/events/EventStateManager.cpp
-index b94dc0c88e01..1f48884058de 100644
---- dom/events/EventStateManager.cpp
-+++ dom/events/EventStateManager.cpp
-@@ -1292,8 +1292,9 @@ EventStateManager::DispatchCrossProcessEvent(WidgetEvent* aEvent,
-     return;
-   }
-   case eDragEventClass: {
--    if (remote->Manager()->IsContentParent()) {
--      remote->Manager()->AsContentParent()->MaybeInvokeDragSession(remote);
-+    RefPtr<TabParent> tabParent = remote;
-+    if (tabParent->Manager()->IsContentParent()) {
-+      tabParent->Manager()->AsContentParent()->MaybeInvokeDragSession(tabParent);
-     }
- 
-     nsCOMPtr<nsIDragSession> dragSession = nsContentUtils::GetDragSession();
-@@ -1309,7 +1310,7 @@ EventStateManager::DispatchCrossProcessEvent(WidgetEvent* aEvent,
-       }
-     }
- 
--    remote->SendRealDragEvent(*aEvent->AsDragEvent(), action, dropEffect);
-+    tabParent->SendRealDragEvent(*aEvent->AsDragEvent(), action, dropEffect);
-     return;
-   }
-   case ePluginEventClass: {