Enable GN check for webrtc/common_video

BUG=webrtc:6828
NOTRY=True

Review-Url: https://codereview.webrtc.org/2715113002
Cr-Commit-Position: refs/heads/master@{#16883}
diff --git a/.gn b/.gn
index 7993d0d..d495e66 100644
--- a/.gn
+++ b/.gn
@@ -25,6 +25,7 @@
   "//webrtc/api/*",
   "//webrtc/audio/*",
   "//webrtc/call/*",
+  "//webrtc/common_video/*",
   "//webrtc/modules/audio_coding/*",
   "//webrtc/modules/audio_conference_mixer/*",
   "//webrtc/modules/audio_device/*",
diff --git a/webrtc/common_video/BUILD.gn b/webrtc/common_video/BUILD.gn
index b3e6c42..152f98b 100644
--- a/webrtc/common_video/BUILD.gn
+++ b/webrtc/common_video/BUILD.gn
@@ -57,6 +57,7 @@
 
   deps = [
     "..:webrtc_common",
+    "../base:rtc_base",
     "../base:rtc_task_queue",
     "../system_wrappers",
   ]
@@ -119,6 +120,8 @@
 
     deps = [
       ":common_video",
+      "../base:rtc_base",
+      "../base:rtc_base_approved",
       "../modules/video_capture:video_capture",
       "../system_wrappers:system_wrappers",
       "../test:test_main",