This CL removes all usages of our custom ostream << overloads.

This prepares us for removing them altogether.

Bug: webrtc:8982
Change-Id: I66002cc8d4bf0e07925766d568d2498422f0f38e
Reviewed-on: https://webrtc-review.googlesource.com/64142
Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org>
Reviewed-by: Henrik Grunell <henrikg@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Reviewed-by: Per Kjellander <perkj@webrtc.org>
Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22707}
diff --git a/rtc_base/socket_unittest.cc b/rtc_base/socket_unittest.cc
index a31cc02..be958d3 100644
--- a/rtc_base/socket_unittest.cc
+++ b/rtc_base/socket_unittest.cc
@@ -224,7 +224,7 @@
       ss_->CreateAsyncSocket(loopback.family(), SOCK_STREAM));
   sink.Monitor(client.get());
   EXPECT_EQ(AsyncSocket::CS_CLOSED, client->GetState());
-  EXPECT_PRED1(IsUnspecOrEmptyIP, client->GetLocalAddress().ipaddr());
+  EXPECT_TRUE(IsUnspecOrEmptyIP(client->GetLocalAddress().ipaddr()));
 
   // Create server and listen.
   std::unique_ptr<AsyncSocket> server(