Cast: Flow hw encoder initialization error to extensions API

media/cast/test/end2end_unittest.cc

 // Copyright 2013 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.
 //
 // This test generate synthetic data. For audio it's a sinusoid waveform with
 // frequency kSoundFrequency and different amplitudes. For video it's a pattern
 // that is shifting by one pixel per frame, each pixels neighbors right and down
 // is this pixels value +1, since the pixel value is 8 bit it will wrap
 // frequently within the image. Visually this will create diagonally color bands
 // that moves across the screen
@@ skipping 594 matching lines @@
     cast_sender_ =
         CastSender::Create(cast_environment_sender_, transport_sender_.get());
 
     // Initializing audio and video senders.
     cast_sender_->InitializeAudio(audio_sender_config_,
                                   base::Bind(&AudioInitializationStatus));
     cast_sender_->InitializeVideo(video_sender_config_,
                                   base::Bind(&VideoInitializationStatus),
                                   CreateDefaultVideoEncodeAcceleratorCallback(),
                                   CreateDefaultVideoEncodeMemoryCallback());
+    task_runner_->RunTasks();
 
     receiver_to_sender_.SetPacketReceiver(
         transport_sender_->PacketReceiverForTesting(),
         task_runner_,
         &testing_clock_);
     sender_to_receiver_.SetPacketReceiver(cast_receiver_->packet_receiver(),
                                           task_runner_,
                                           &testing_clock_);
 
     audio_frame_input_ = cast_sender_->audio_frame_input();
@@ skipping 839 matching lines @@
   EXPECT_LT(jump, 220u);
 }
 
 // TODO(pwestin): Add repeatable packet loss test.
 // TODO(pwestin): Add test for misaligned send get calls.
 // TODO(pwestin): Add more tests that does not resample.
 // TODO(pwestin): Add test when we have starvation for our RunTask.
 
 }  // namespace cast
 }  // namespace media