Cast: Update simulator tool with more inputs.

media/cast/cast_testing.gypi

Index: media/cast/cast_testing.gypi
diff --git a/media/cast/cast_testing.gypi b/media/cast/cast_testing.gypi
index e6ebd7411be43ab34d0973737551b7e3f16dce1b..e6c7c56e295e2c27e7fd686ecf19371991d8f804 100644
--- a/media/cast/cast_testing.gypi
+++ b/media/cast/cast_testing.gypi
@@ -16,6 +16,7 @@
         '<(DEPTH)/testing/gtest.gyp:gtest',
         '<(DEPTH)/third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
         '<(DEPTH)/third_party/libyuv/libyuv.gyp:libyuv',
+        '<(DEPTH)/third_party/mt19937ar/mt19937ar.gyp:mt19937ar',
         '<(DEPTH)/ui/gfx/gfx.gyp:gfx_geometry',
       ],
       'sources': [
@@ -27,6 +28,8 @@
         'test/skewed_single_thread_task_runner.h',
         'test/skewed_tick_clock.cc',
         'test/skewed_tick_clock.h',
+	'test/loopback_transport.cc',
+	'test/loopback_transport.h',
         'test/utility/audio_utility.cc',
         'test/utility/audio_utility.h',
         'test/utility/barcode.cc',
@@ -170,6 +173,7 @@
       'dependencies': [
         'cast_receiver_app',
         'cast_sender_app',
+        'cast_simulator',
         'udp_proxy',
       ],
     },
@@ -236,6 +240,7 @@
       ],
       'dependencies': [
         'cast_base',
+        'cast_network_model_proto',
         'cast_sender',
         'cast_test_utility',
         'cast_transport',
@@ -251,6 +256,22 @@
       ],
     },
     {
+      # GN version: //media/cast/test/proto
+      'target_name': 'cast_network_model_proto',
+      'type': 'static_library',
+      'include_dirs': [
+        '<(DEPTH)/',
+      ],
+      'sources': [
+        'test/proto/network_simulation_model.proto',
+      ],
+      'variables': {
+        'proto_in_dir': 'test/proto',
+        'proto_out_dir': 'media/cast/test/proto',
+      },
+      'includes': ['../../build/protoc.gypi'],
+    },
+    {
       'target_name': 'generate_barcode_video',
       'type': 'executable',
       'include_dirs': [