Move ADM Create() method to public interface.

webrtc/modules/audio_device/audio_device_impl.cc

Index: webrtc/modules/audio_device/audio_device_impl.cc
diff --git a/webrtc/modules/audio_device/audio_device_impl.cc b/webrtc/modules/audio_device/audio_device_impl.cc
index 6576f5d8e92b8b50d8dd10d37017f7627b068e8f..23ac1e46508182ca8c8acb637a8a6fc4cb63051b 100644
--- a/webrtc/modules/audio_device/audio_device_impl.cc
+++ b/webrtc/modules/audio_device/audio_device_impl.cc
@@ -76,12 +76,12 @@ namespace webrtc {
 //  AudioDeviceModule::Create()
 // ----------------------------------------------------------------------------
 
-rtc::scoped_refptr<AudioDeviceModule> AudioDeviceModuleImpl::Create(
+rtc::scoped_refptr<AudioDeviceModule> AudioDeviceModule::Create(
     const int32_t id,
-    const AudioLayer audioLayer) {
+    const AudioLayer audio_layer) {
     // Create the generic ref counted (platform independent) implementation.
     rtc::scoped_refptr<AudioDeviceModuleImpl> audioDevice(
-        new rtc::RefCountedObject<AudioDeviceModuleImpl>(id, audioLayer));
+        new rtc::RefCountedObject<AudioDeviceModuleImpl>(id, audio_layer));
 
     // Ensure that the current platform is supported.
     if (audioDevice->CheckPlatform() == -1)