Switch to compiling WebRTC -std=c++14 by default This is a canary CL to check if using c++14 feature breaks any webrtc user. Bug: webrtc:10945 Change-Id: Iabaf8c06414c1ac960791bcb7cc46f5f5a5e1f14 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/151600 Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#29119}

diff --git a/.gn b/.gn
index 3ff65c1..09f1b65 100644
--- a/.gn
+++ b/.gn

@@ -68,12 +68,6 @@
   android32_ndk_api_level = 16
   android64_ndk_api_level = 21
 
-  # WebRTC does not want to switch to C++14 yet.
-  use_cxx11 = true
-
-  # WebRTC relies on Chromium's Android test infrastructure.
-  use_cxx11_on_android = false
-
   # WebRTC does not provide the gflags dependency. Because libyuv uses it only
   # for unittests, it can be disabled (see third_party/libyuv/BUILD.gn)
   libyuv_use_gflags = false

diff --git a/pc/peer_connection.cc b/pc/peer_connection.cc
index 47825dc..0b943b51 100644
--- a/pc/peer_connection.cc
+++ b/pc/peer_connection.cc

@@ -3900,17 +3900,11 @@
 
 bool PeerConnection::StartRtcEventLog(std::unique_ptr<RtcEventLogOutput> output,
                                       int64_t output_period_ms) {
-  // TODO(eladalon): In C++14, this can be done with a lambda.
-  struct Functor {
-    bool operator()() {
-      return pc->StartRtcEventLog_w(std::move(output), output_period_ms);
-    }
-    PeerConnection* const pc;
-    std::unique_ptr<RtcEventLogOutput> output;
-    const int64_t output_period_ms;
-  };
   return worker_thread()->Invoke<bool>(
-      RTC_FROM_HERE, Functor{this, std::move(output), output_period_ms});
+      RTC_FROM_HERE,
+      [this, output = std::move(output), output_period_ms]() mutable {
+        return StartRtcEventLog_w(std::move(output), output_period_ms);
+      });
 }
 
 bool PeerConnection::StartRtcEventLog(