[Media Router] Parse device description xml in utility process

chrome/utility/BUILD.gn

Index: chrome/utility/BUILD.gn
diff --git a/chrome/utility/BUILD.gn b/chrome/utility/BUILD.gn
index 637a2336e396d92ef3dbe4a86421407e9a6f1a62..55b5a479bebc6b23e601ecf9370686d2c6122647 100644
--- a/chrome/utility/BUILD.gn
+++ b/chrome/utility/BUILD.gn
@@ -57,6 +57,7 @@ static_library("utility") {
     "//skia",
     "//sql",
     "//third_party/libxml",
+    "//third_party/libxslt",
   ]
 
   if (!is_android) {
@@ -178,4 +179,11 @@ static_library("utility") {
   if (is_mac && safe_browsing_mode == 1) {
     deps += [ "//chrome/utility/safe_browsing/mac" ]
   }
+
+  if (enable_media_router) {
+    sources += [
+      "media_router/dial_device_description_parser.cc",
+      "media_router/dial_device_description_parser.h",
+    ]
+  }
 }