Sync media/gpu gyp and gn Mac framework deps (copy gyp => gn)

media/gpu/BUILD.gn

Index: media/gpu/BUILD.gn
diff --git a/media/gpu/BUILD.gn b/media/gpu/BUILD.gn
index 1db7ee13ce660fd7cd3cf8dde33bdc6d1b647fbd..713cba0876cfa5f61f8b3993e621f22926856f1b 100644
--- a/media/gpu/BUILD.gn
+++ b/media/gpu/BUILD.gn
@@ -177,16 +177,13 @@ component("gpu") {
                ] + get_target_outputs(":libvt_generate_stubs")
     deps += [ ":libvt_generate_stubs" ]
     lib_dirs = [ "$mac_sdk_path/usr/lib" ]
-
-    # TODO(markdittmer): Determine which libs are needed here.
-    libs += [
-      # "AVFoundation.framework",
-      # "CoreMedia.framework",
-      # "CoreVideo.framework",
-      # "IOSurface.framework",
-      # "OpenGL.framework",
-      # "QuartzCore.framework",
-      # "sandbox",
+    libs = [
+      "AVFoundation.framework",
+      "CoreMedia.framework",
+      "CoreVideo.framework",
+      "IOSurface.framework",
+      "QuartzCore.framework",
+      "sandbox",
     ]
   }