Move rtc_api_unittests into rtc_unittests.

webrtc/api/rtcerror.h

 /*
  *  Copyright 2017 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.
  */
 
@@ skipping 215 matching lines @@
   // when the return type is RTCErrorOr<T>.
   RTCErrorOr(T value) : value_(std::move(value)) {}
 
   // Delete the copy constructor and assignment operator; there aren't any use
   // cases where you should need to copy an RTCErrorOr, as opposed to moving
   // it. Can revisit this decision if use cases arise in the future.
   RTCErrorOr(const RTCErrorOr& other) = delete;
   RTCErrorOr& operator=(const RTCErrorOr& other) = delete;
 
   // Move constructor and move-assignment operator.
-  RTCErrorOr(RTCErrorOr&& other) = default;
-  RTCErrorOr& operator=(RTCErrorOr&& other) = default;
+  //
+  // Visual Studio doesn't support "= default" with move constructors or
+  // assignment operators (even though they compile, they segfault), so define
+  // them explicitly.
+  RTCErrorOr(RTCErrorOr&& other)
+      : error_(std::move(other.error_)), value_(std::move(other.value_)) {}
+  RTCErrorOr& operator=(RTCErrorOr&& other) {
+    error_ = std::move(other.error_);
+    value_ = std::move(other.value_);
+    return *this;
+  }
 
   // Conversion constructor and assignment operator; T must be copy or move
   // constructible from U.
   template <typename U>
   RTCErrorOr(RTCErrorOr<U> other)
       : error_(std::move(other.error_)), value_(std::move(other.value_)) {}
   template <typename U>
   RTCErrorOr& operator=(RTCErrorOr<U> other) {
     error_ = std::move(other.error_);
     value_ = std::move(other.value_);
@@ skipping 34 matching lines @@
   }
 
  private:
   RTCError error_;
   T value_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_RTCERROR_H_