Move RTCAudioSession* files modules/audio_device/ -> sdk/Framework.

webrtc/modules/audio_device/ios/objc/RTCAudioSessionDelegateAdapter.h

 /*
  *  Copyright 2016 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 "webrtc/modules/audio_device/ios/objc/RTCAudioSession.h"
+#import "webrtc/sdk/objc/Framework/Headers/WebRTC/RTCAudioSession.h"
 
 namespace webrtc {
 class AudioSessionObserver;
 }
 
 /** Adapter that forwards RTCAudioSessionDelegate calls to the appropriate
  *  methods on the AudioSessionObserver.
  */
 @interface RTCAudioSessionDelegateAdapter : 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