base: Remove the string logging from CHECK().

content/browser/renderer_host/media/audio_output_authorization_handler_unittest.cc

 // Copyright 2016 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.
 
 // Unit tests for AudioOutputAuthorizationHandler.
 
 #include "content/browser/renderer_host/media/audio_output_authorization_handler.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 114 matching lines @@
 
   void GetRawNondefaultIdOnIOThread(std::string* out) {
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     MediaDevicesManager::BoolDeviceTypes devices_to_enumerate;
     devices_to_enumerate[MEDIA_DEVICE_TYPE_AUDIO_OUTPUT] = true;
 
     media_stream_manager_->media_devices_manager()->EnumerateDevices(
         devices_to_enumerate,
         base::Bind(
             [](std::string* out, const MediaDeviceEnumeration& result) {
-              // Index 0 is default, so use 1.
+              // Index 0 is default, so use 1. We expect to have a nondefault
+              // device.
               CHECK(result[MediaDeviceType::MEDIA_DEVICE_TYPE_AUDIO_OUTPUT]
-                        .size() > 1)
-                  << "Expected to have a nondefault device.";
+                        .size() > 1);
               *out = result[MediaDeviceType::MEDIA_DEVICE_TYPE_AUDIO_OUTPUT][1]
                          .device_id;
             },
             base::Unretained(out)));
   }
 
   // media_stream_manager must die after threads since it's a
   // DestructionObserver.
   std::unique_ptr<MediaStreamManager> media_stream_manager_;
   std::unique_ptr<TestBrowserThreadBundle> thread_bundle_;
@@ skipping 187 matching lines @@
       (base::Bind(&AudioOutputAuthorizationHandler::RequestDeviceAuthorization,
                   base::Unretained(handler.get()), kRenderFrameId, kSessionId,
                   std::string(), BadSecurityOrigin(), listener.GetCallback())));
 
   SyncWithAllThreads();
   BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE, handler.release());
   SyncWithAllThreads();
 }
 
 }  // namespace content