GN: Make content_shell and webkit_unit_tests work in component build

content/renderer/BUILD.gn

Index: content/renderer/BUILD.gn
diff --git a/content/renderer/BUILD.gn b/content/renderer/BUILD.gn
index 24e0e5420d391a89da292172f545bf3bf42a6b64..605a6753bc12bd19126d6f31d802bbd42bcb0e8a 100644
--- a/content/renderer/BUILD.gn
+++ b/content/renderer/BUILD.gn
@@ -149,6 +149,7 @@ source_set("renderer") {
       "//ppapi:ppapi_host",
       "//ppapi:ppapi_proxy",
       "//ppapi:ppapi_shared",
+      "//third_party/libyuv",
     ]
   } else {
     # These files are in the WebRTC list, but also require plugins.
@@ -165,4 +166,8 @@ source_set("renderer") {
         content_renderer_gypi_values.private_renderer_plugin_webrtc_sources,
         ".", "//content")
   }
+
+  if (printing_mode == 1) {
+    deps += [ "//printing" ]
+  }
 }