Add timestamp when socket times out

Merge from Widevine repo of http://go/wvgerrit/123407
and http://go/wvgerrit/130983

This should help us debug flaky tests.

Bug: 186031735
Change-Id: I5229176c80dad5875b6ef01ea167e4e26d48506d

libwvdrmengine/cdm/core/test/url_request.cpp

@@ -87,7 +87,7 @@ UrlRequest::~UrlRequest() {}
 void UrlRequest::Reconnect() {
   for (uint32_t i = 0; i < kMaxConnectAttempts && !is_connected_; ++i) {
     socket_.CloseSocket();
-    if (socket_.Connect(kConnectTimeoutMs)) {
+    if (socket_.ConnectAndLogErrors(kConnectTimeoutMs)) {
       is_connected_ = true;
     } else {
       LOGE("Failed to connect: url = %s, port = %d, attempt = %u",
@@ -104,8 +104,8 @@ bool UrlRequest::GetResponse(std::string* message) {
   // non-blocking mode.
   while (true) {
     char read_buffer[kReadBufferSize];
-    const int bytes =
-        socket_.Read(read_buffer, sizeof(read_buffer), kReadTimeoutMs);
+    const int bytes = socket_.ReadAndLogErrors(read_buffer, sizeof(read_buffer),
+                                               kReadTimeoutMs);
     if (bytes > 0) {
       response.append(read_buffer, bytes);
     } else if (bytes < 0) {
@@ -203,8 +203,8 @@ bool UrlRequest::PostRequestWithPath(const std::string& path,
 
   request.append(data);
 
-  const int ret =
-      socket_.Write(request.c_str(), request.size(), kWriteTimeoutMs);
+  const int ret = socket_.WriteAndLogErrors(request.c_str(), request.size(),
+                                            kWriteTimeoutMs);
   LOGV("HTTP request: (%zu): %s", request.size(), b2a_hex(request).c_str());
   return ret != -1;
 }