audio_coding: remove "main" directory

webrtc/modules/audio_coding/acm2/codec_manager_unittest.cc

 /*
  *  Copyright (c) 2015 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.
  */
 
 #include "testing/gtest/include/gtest/gtest.h"
 #include "webrtc/modules/audio_coding/codecs/mock/mock_audio_encoder.h"
-#include "webrtc/modules/audio_coding/main/acm2/codec_manager.h"
+#include "webrtc/modules/audio_coding/acm2/codec_manager.h"
 
 namespace webrtc {
 namespace acm2 {
 
 using ::testing::Return;
 
 namespace {
 
 // Create a MockAudioEncoder with some reasonable default behavior.
 rtc::scoped_ptr<MockAudioEncoder> CreateMockEncoder() {
@@ skipping 33 matching lines @@
 
   EXPECT_EQ(0, cm.SetCodecFEC(false));
   enc0->Mark("B");
   EXPECT_FALSE(cm.codec_fec_enabled());
   cm.RegisterEncoder(enc0.get());
   EXPECT_FALSE(cm.codec_fec_enabled());
 }
 
 }  // namespace acm2
 }  // namespace webrtc