Moving iOS Audio Device to sdk.
This change forks the existing iOS audio device module and audio device
from modules/audio_device/ into sdk/objc/Framework. It also updates
RTCPeerConnectionFactory to use the forked implementation.
The unit tests are re-implemented as XCTests.
(was: https://webrtc-review.googlesource.com/c/src/+/67300)
Bug: webrtc:9120
Change-Id: I46c09900246f75ca5285aeb38f7b8b295784ffac
Reviewed-on: https://webrtc-review.googlesource.com/76741
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Reviewed-by: Anders Carlsson <andersc@webrtc.org>
Commit-Queue: Peter Hanspers <peterhanspers@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23238}diff --git a/sdk/objc/Framework/Classes/Audio/RTCNativeAudioSessionDelegateAdapter.h b/sdk/objc/Framework/Classes/Audio/RTCNativeAudioSessionDelegateAdapter.h
new file mode 100644
index 0000000..487bab1
--- /dev/null
+++ b/sdk/objc/Framework/Classes/Audio/RTCNativeAudioSessionDelegateAdapter.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2018 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#import "sdk/objc/Framework/Headers/WebRTC/RTCAudioSession.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+namespace webrtc {
+class AudioSessionObserver;
+}
+
+/** Adapter that forwards RTCAudioSessionDelegate calls to the appropriate
+ * methods on the AudioSessionObserver.
+ */
+@interface RTCNativeAudioSessionDelegateAdapter : NSObject <RTCAudioSessionDelegate>
+
+- (instancetype)init NS_UNAVAILABLE;
+
+/** |observer| is a raw pointer and should be kept alive
+ * for this object's lifetime.
+ */
+- (instancetype)initWithObserver:(webrtc::AudioSessionObserver *)observer
+ NS_DESIGNATED_INITIALIZER;
+
+@end
+
+NS_ASSUME_NONNULL_END