Add AudioStreamRegistry. Move stream counting logic

content/browser/renderer_host/media/audio_input_renderer_host_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.
 
 #include "content/browser/renderer_host/media/audio_input_renderer_host.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 32 matching lines @@
 namespace content {
 
 namespace {
 
 const int kStreamId = 100;
 const int kRenderProcessId = 42;
 const int kRendererPid = 21718;
 const int kRenderFrameId = 31415;
 const int kSharedMemoryCount = 11;
 const char kSecurityOrigin[] = "http://localhost";
+#if BUILDFLAG(ENABLE_WEBRTC)
 #if defined(OS_WIN)
 const wchar_t kBaseFileName[] = L"some_file_name";
 #else
 const char kBaseFileName[] = "some_file_name";
 #endif
+#endif  // BUILDFLAG(ENABLE_WEBRTC)
 
 url::Origin SecurityOrigin() {
   return url::Origin(GURL(kSecurityOrigin));
 }
 
 AudioInputHostMsg_CreateStream_Config DefaultConfig() {
   AudioInputHostMsg_CreateStream_Config config;
   config.params = media::AudioParameters::UnavailableDeviceParams();
   config.automatic_gain_control = false;
   config.shared_memory_count = kSharedMemoryCount;
@@ skipping 494 matching lines @@
   EXPECT_CALL(controller_factory_, ControllerCreated());
 
   airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
       kStreamId, kRenderFrameId, session_id, DefaultConfig()));
   base::RunLoop().RunUntilIdle();
 
   EXPECT_CALL(*controller_factory_.controller(0), Close(_));
 }
 
 }  // namespace content