[chrome.displaySource] Use WDS for Wi-Fi Display implementation

extensions/renderer/BUILD.gn

Index: extensions/renderer/BUILD.gn
diff --git a/extensions/renderer/BUILD.gn b/extensions/renderer/BUILD.gn
index 9606e85b1dffe333626e750d4ed45bdb383bf274..1b8f7d0efbe3a9fcfe5666193b1d1c2249e3aef6 100644
--- a/extensions/renderer/BUILD.gn
+++ b/extensions/renderer/BUILD.gn
@@ -31,4 +31,14 @@ source_set("renderer") {
     "//skia",
     "//third_party/WebKit/public:blink",
   ]
+
+  if (enable_wifi_display) {
+    wifi_display_sources = rebase_path(
+            extensions_gypi_values.extensions_renderer_sources_wifi_display,
+            ".",
+            "//extensions")
+    sources += wifi_display_sources
+
+    deps += [ "//third_party/wds:libwds" ]
+  }
 }