Add widevine and extensions resources to GN build.

content/renderer/BUILD.gn

Index: content/renderer/BUILD.gn
diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
index d675a1e33fcc04c791ec3161f62cb403a532eabf..4dde197a9d5068d748a5f92a937f2fc411faa6c6 100644
--- a/content/renderer/BUILD.gn
+++ b/content/renderer/BUILD.gn
@@ -16,7 +16,6 @@ source_set("renderer") {
   configs += [
     "//content:content_implementation",
     "//content:libjingle_stub_config",
-    "//content:widevine_stub_config",
   ]
 
   deps = [
@@ -28,6 +27,7 @@ source_set("renderer") {
     "//content:resources",
     "//content/common:mojo_bindings",
     "//gin",
+    "//mojo/environment:chromium",
     "//mojo/public/js/bindings",
     "//mojo/public/interfaces/service_provider",
     "//net",
@@ -35,6 +35,7 @@ source_set("renderer") {
     "//third_party/icu",
     "//third_party/npapi",
     "//third_party/WebKit/public:blink_headers",
+    "//third_party/widevine/cdm:version_h",
     "//ui/accessibility",
     "//ui/events:dom4_keycode_converter",
     "//ui/native_theme",
@@ -47,10 +48,8 @@ source_set("renderer") {
     # TODO(GYP)
     #'../jingle/jingle.gyp:jingle_glue',
     #'../media/media.gyp:media',
-    #'../mojo/mojo.gyp:mojo_environment_chromium',
     #'../third_party/WebKit/public/blink.gyp:blink',
     #'../third_party/libjingle/libjingle.gyp:libjingle',
-    #'../third_party/widevine/cdm/widevine_cdm.gyp:widevine_cdm_version_h',
   ]
 
   if (!enable_notifications) {