Always save eww history

* eww.el (eww-setup-buffer): Always save history, even when
called from outside the eww buffer (bug#19638).

lisp/net/eww.el

@@ -274,17 +274,13 @@ word(s) will be searched for via `eww-search-prefix'."
                  (setq url (concat url "/"))))
            (setq url (concat eww-search-prefix
                              (replace-regexp-in-string " " "+" url))))))
-  (if (eq major-mode 'eww-mode)
-      (when (or (plist-get eww-data :url)
-		(plist-get eww-data :dom))
-	(eww-save-history))
-    (eww-setup-buffer)
-    (plist-put eww-data :url url)
-    (plist-put eww-data :title "")
-    (eww-update-header-line-format)
-    (let ((inhibit-read-only t))
-      (insert (format "Loading %s..." url))
-      (goto-char (point-min))))
+  (eww-setup-buffer)
+  (plist-put eww-data :url url)
+  (plist-put eww-data :title "")
+  (eww-update-header-line-format)
+  (let ((inhibit-read-only t))
+    (insert (format "Loading %s..." url))
+    (goto-char (point-min)))
   (url-retrieve url 'eww-render
 		(list url nil (current-buffer))))
 
@@ -540,6 +536,9 @@ Currently this means either text/html or application/xhtml+xml."
 
 (defun eww-setup-buffer ()
   (switch-to-buffer (get-buffer-create "*eww*"))
+  (when (or (plist-get eww-data :url)
+            (plist-get eww-data :dom))
+    (eww-save-history))
   (let ((inhibit-read-only t))
     (remove-overlays)
     (erase-buffer))