Make SystemMonitor report all audio device changes instead of just audio capture.

chrome/browser/extensions/api/webrtc_audio_private/webrtc_audio_private_browsertest.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.
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/json/json_writer.h"
@@ skipping 359 matching lines @@
 #define MAYBE_TriggerEvent DISABLED_TriggerEvent
 #else
 #define MAYBE_TriggerEvent TriggerEvent
 #endif
 
 IN_PROC_BROWSER_TEST_F(WebrtcAudioPrivateTest, MAYBE_TriggerEvent) {
   WebrtcAudioPrivateEventService* service =
       WebrtcAudioPrivateEventService::GetFactoryInstance()->Get(profile());
 
   // Just trigger, without any extension listening.
-  service->OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO_CAPTURE);
+  service->OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO);
 
   // Now load our test extension and do it again.
   const extensions::Extension* extension = LoadExtension(
       test_data_dir_.AppendASCII("webrtc_audio_private_event_listener"));
-  service->OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO_CAPTURE);
+  service->OnDevicesChanged(base::SystemMonitor::DEVTYPE_AUDIO);
 
   // Check that the extension got the notification.
   std::string result = ExecuteScriptInBackgroundPage(extension->id(),
                                                      "reportIfGot()");
   EXPECT_EQ("true", result);
 }
 
 class HangoutServicesBrowserTest : public AudioWaitingExtensionTest {
  public:
   void SetUp() override {
@@ skipping 36 matching lines @@
   title_watcher.AlsoWaitForTitle(base::ASCIIToUTF16("failure"));
   base::string16 result = title_watcher.WaitAndGetTitle();
   EXPECT_EQ(base::ASCIIToUTF16("success"), result);
 
   g_browser_process->webrtc_log_uploader()->OverrideUploadWithBufferForTesting(
       NULL);
 }
 #endif  // defined(GOOGLE_CHROME_BUILD) || defined(ENABLE_HANGOUT_SERVICES_EXTENSION)
 
 }  // namespace extensions