Remove most uses of UnescapeRule::URL_SPECIAL_CHARS outside net/.

ui/base/webui/web_ui_util.cc

Index: ui/base/webui/web_ui_util.cc
diff --git a/ui/base/webui/web_ui_util.cc b/ui/base/webui/web_ui_util.cc
index e83ea68f62615332c13e113b071fe1b26b40697c..0f91f3f70451f02b6d7a979a71090c3c0d3b4c51 100644
--- a/ui/base/webui/web_ui_util.cc
+++ b/ui/base/webui/web_ui_util.cc
@@ -91,9 +91,10 @@ bool ParseScaleFactor(const base::StringPiece& identifier,
 void ParsePathAndScale(const GURL& url,
                        std::string* path,
                        float* scale_factor) {
-  *path = net::UnescapeURLComponent(url.path().substr(1),
-                                    (net::UnescapeRule::URL_SPECIAL_CHARS |
-                                     net::UnescapeRule::SPACES));
+  *path = net::UnescapeURLComponent(
+      url.path().substr(1),
+      net::UnescapeRule::URL_SPECIAL_CHARS_EXCEPT_PATH_SEPARATORS |
+          net::UnescapeRule::SPACES);
   if (scale_factor)
     *scale_factor = 1.0f;