WebRtcVideoCapturer: SetCaptureState(CS_STOPPED) on Stop and ensure state changes in unittest

talk/media/webrtc/webrtcvideocapturer_unittest.cc

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 93 matching lines @@
   EXPECT_EQ_WAIT(cricket::CS_RUNNING, listener_.last_capture_state(), 1000);
   EXPECT_TRUE(factory_->modules[0]->SendFrame(640, 480));
   EXPECT_TRUE_WAIT(listener_.frame_count() > 0, 5000);
   EXPECT_EQ(capturer_->GetCaptureFormat()->fourcc, listener_.frame_fourcc());
   EXPECT_EQ(640, listener_.frame_width());
   EXPECT_EQ(480, listener_.frame_height());
   EXPECT_EQ(cricket::CS_FAILED, capturer_->Start(format));
   capturer_->Stop();
   EXPECT_FALSE(capturer_->IsRunning());
   EXPECT_TRUE(capturer_->GetCaptureFormat() == NULL);
+  EXPECT_EQ_WAIT(cricket::CS_STOPPED, listener_.last_capture_state(), 1000);
 }
 
 TEST_F(WebRtcVideoCapturerTest, TestCaptureVcm) {
   EXPECT_TRUE(capturer_->Init(factory_->Create(0,
       reinterpret_cast<const char*>(kTestDeviceId.c_str()))));
   EXPECT_TRUE(capturer_->GetSupportedFormats()->empty());
   VideoFormat format;
   EXPECT_TRUE(capturer_->GetBestCaptureFormat(kDefaultVideoFormat, &format));
   EXPECT_EQ(kDefaultVideoFormat.width, format.width);
   EXPECT_EQ(kDefaultVideoFormat.height, format.height);
@@ skipping 14 matching lines @@
   EXPECT_FALSE(capturer_->IsRunning());
   EXPECT_TRUE(capturer_->GetCaptureFormat() == NULL);
 }
 
 TEST_F(WebRtcVideoCapturerTest, TestCaptureWithoutInit) {
   cricket::VideoFormat format;
   EXPECT_EQ(cricket::CS_NO_DEVICE, capturer_->Start(format));
   EXPECT_TRUE(capturer_->GetCaptureFormat() == NULL);
   EXPECT_FALSE(capturer_->IsRunning());
 }