[Cast] Compute utilization metrics and add performance overlay.

media/cast/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//testing/test.gni")
 
 component("cast") {
   deps = [
     ":sender",
     ":receiver",
@@ skipping 103 matching lines @@
     "sender/audio_sender.cc",
     "sender/audio_sender.h",
     "sender/congestion_control.cc",
     "sender/congestion_control.h",
     "sender/external_video_encoder.cc",
     "sender/external_video_encoder.h",
     "sender/fake_software_video_encoder.cc",
     "sender/fake_software_video_encoder.h",
     "sender/frame_sender.cc",
     "sender/frame_sender.h",
+    "sender/performance_metrics_overlay.cc",
+    "sender/performance_metrics_overlay.h",
+    "sender/sender_encoded_frame.cc",
+    "sender/sender_encoded_frame.h",
     "sender/size_adaptable_video_encoder_base.cc",
     "sender/size_adaptable_video_encoder_base.h",
     "sender/software_video_encoder.h",
     "sender/video_encoder.cc",
     "sender/video_encoder.h",
     "sender/video_encoder_impl.cc",
     "sender/video_encoder_impl.h",
     "sender/video_frame_factory.h",
     "sender/video_sender.cc",
     "sender/video_sender.h",
@@ skipping 31 matching lines @@
 
   libs = []
 
   # iOS and OS X encoders
   if (is_ios || is_mac) {
     sources += [
       "sender/h264_vt_encoder.cc",
       "sender/h264_vt_encoder.h",
     ]
 
-    libs += [
-      "CoreVideo.framework",
-    ]
+    libs += [ "CoreVideo.framework" ]
   }
 
   if (is_mac) {
     # Required by audio_encoder.cc.
-    libs += [
-      "AudioToolbox.framework",
-    ]
+    libs += [ "AudioToolbox.framework" ]
   }
 }
 
 source_set("receiver") {
   sources = [
     "cast_receiver.h",
     "receiver/audio_decoder.cc",
     "receiver/audio_decoder.h",
     "receiver/cast_receiver_impl.cc",
     "receiver/cast_receiver_impl.h",
@@ skipping 223 matching lines @@
       "test/utility/tap_proxy.cc",
     ]
 
     deps = [
       ":test_support",
       "//base",
       "//media",
     ]
   }
 }