Use stream type CRAS_CLIENT_TYPE_LACROS for lacros-chrome

Change stream type to CRAS_CLIENT_TYPE_LACROS for lacros-chrome.
The stream type is used while recording UMA logs in CRAS. So we can
separate data between ash-chrome and lacros-chrome.

BUG=b:167941044

Change-Id: I35a8320bd9b5d372d9f5ac883078d010ed42ee9e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2521473Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825720}

media/audio/cras/audio_manager_chromeos.cc

@@ -537,4 +537,8 @@ void AudioManagerChromeOS::WaitEventOrShutdown(base::WaitableEvent* event) {
   base::WaitableEvent::WaitMany(waitables, base::size(waitables));
 }
 
+enum CRAS_CLIENT_TYPE AudioManagerChromeOS::GetClientType() {
+  return CRAS_CLIENT_TYPE_CHROME;
+}
+
 }  // namespace media

media/audio/cras/audio_manager_chromeos.h

@@ -43,6 +43,7 @@ class MEDIA_EXPORT AudioManagerChromeOS : public AudioManagerCrasBase {
 
   // AudioManagerCrasBase implementation.
   bool IsDefault(const std::string& device_id, bool is_input) override;
+  enum CRAS_CLIENT_TYPE GetClientType() override;
 
  protected:
   AudioParameters GetPreferredOutputStreamParameters(

media/audio/cras/audio_manager_cras.cc

@@ -167,4 +167,8 @@ bool AudioManagerCras::IsDefault(const std::string& device_id, bool is_input) {
   return device_id == AudioDeviceDescription::kDefaultDeviceId;
 }
 
+enum CRAS_CLIENT_TYPE AudioManagerCras::GetClientType() {
+  return CRAS_CLIENT_TYPE_LACROS;
+}
+
 }  // namespace media

media/audio/cras/audio_manager_cras.h

@@ -36,6 +36,7 @@ class MEDIA_EXPORT AudioManagerCras : public AudioManagerCrasBase {
 
   // AudioManagerCrasBase implementation.
   bool IsDefault(const std::string& device_id, bool is_input) override;
+  enum CRAS_CLIENT_TYPE GetClientType() override;
 
  protected:
   AudioParameters GetPreferredOutputStreamParameters(

media/audio/cras/audio_manager_cras_base.h

@@ -48,6 +48,9 @@ class MEDIA_EXPORT AudioManagerCrasBase : public AudioManagerBase {
   // Set |is_input| to true for capture devices, false for output.
   virtual bool IsDefault(const std::string& device_id, bool is_input) = 0;
 
+  // Returns CRAS client type.
+  virtual enum CRAS_CLIENT_TYPE GetClientType() = 0;
+
  protected:
   // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream.
   AudioOutputStream* MakeOutputStream(const AudioParameters& params,

media/audio/cras/cras_input.cc

@@ -210,7 +210,7 @@ void CrasInputStream::Start(AudioInputCallback* callback) {
   }
 
   cras_client_stream_params_set_client_type(stream_params,
-                                            CRAS_CLIENT_TYPE_CHROME);
+                                            audio_manager_->GetClientType());
 
   if (UseCrasAec())
     cras_client_stream_params_enable_aec(stream_params);

media/audio/cras/cras_unified.cc

@@ -203,7 +203,7 @@ void CrasUnifiedStream::Start(AudioSourceCallback* callback) {
   }
 
   cras_client_stream_params_set_client_type(stream_params,
-                                            CRAS_CLIENT_TYPE_CHROME);
+                                            manager_->GetClientType());
 
   // Before starting the stream, save the number of bytes in a frame for use in
   // the callback.