Moving src/webrtc into src/.

In order to eliminate the WebRTC Subtree mirror in Chromium, 
WebRTC is moving the content of the src/webrtc directory up
to the src/ directory.

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org

Bug: chromium:611808
Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38
Reviewed-on: https://webrtc-review.googlesource.com/1560
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19845}

modules/audio_coding/acm2/codec_manager.h

@@ -0,0 +1,75 @@
+/*
+ *  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.
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_CODING_ACM2_CODEC_MANAGER_H_
+#define WEBRTC_MODULES_AUDIO_CODING_ACM2_CODEC_MANAGER_H_
+
+#include <map>
+
+#include "webrtc/api/optional.h"
+#include "webrtc/common_types.h"
+#include "webrtc/modules/audio_coding/acm2/rent_a_codec.h"
+#include "webrtc/modules/audio_coding/include/audio_coding_module.h"
+#include "webrtc/modules/audio_coding/include/audio_coding_module_typedefs.h"
+#include "webrtc/rtc_base/constructormagic.h"
+#include "webrtc/rtc_base/thread_checker.h"
+
+namespace webrtc {
+
+class AudioDecoder;
+class AudioEncoder;
+
+namespace acm2 {
+
+class CodecManager final {
+ public:
+  CodecManager();
+  ~CodecManager();
+
+  // Parses the given specification. On success, returns true and updates the
+  // stored CodecInst and stack parameters; on error, returns false.
+  bool RegisterEncoder(const CodecInst& send_codec);
+
+  static CodecInst ForgeCodecInst(const AudioEncoder* external_speech_encoder);
+
+  const CodecInst* GetCodecInst() const {
+    return send_codec_inst_ ? &*send_codec_inst_ : nullptr;
+  }
+
+  void UnsetCodecInst() { send_codec_inst_ = rtc::Optional<CodecInst>(); }
+
+  const RentACodec::StackParameters* GetStackParams() const {
+    return &codec_stack_params_;
+  }
+  RentACodec::StackParameters* GetStackParams() { return &codec_stack_params_; }
+
+  bool SetCopyRed(bool enable);
+
+  bool SetVAD(bool enable, ACMVADMode mode);
+
+  bool SetCodecFEC(bool enable_codec_fec);
+
+  // Uses the provided Rent-A-Codec to create a new encoder stack, if we have a
+  // complete specification; if so, it is then passed to set_encoder. On error,
+  // returns false.
+  bool MakeEncoder(RentACodec* rac, AudioCodingModule* acm);
+
+ private:
+  rtc::ThreadChecker thread_checker_;
+  rtc::Optional<CodecInst> send_codec_inst_;
+  RentACodec::StackParameters codec_stack_params_;
+  bool recreate_encoder_ = true;  // Need to recreate encoder?
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(CodecManager);
+};
+
+}  // namespace acm2
+}  // namespace webrtc
+#endif  // WEBRTC_MODULES_AUDIO_CODING_ACM2_CODEC_MANAGER_H_