Squashed merge 3 CLs.

1. "Change CdmResponseType from enum into a struct"
Merged from http://go/wvgerrit/163199
Bug: 253271674

2. "Log request information when server returns 401"
Bug: 260760387
Bug: 186031735
Merged from http://go/wvgerrit/162798

3. "Specify server version on the command line"
Bug: 251599048
Merged from http://go/wvgerrit/158897

Test: build android.hardware.drm-service.widevine
Test: Netflix and Play Movies & TV
Test: build_and_run_all_unit_tests.sh

Bug: 253271674
Change-Id: I70c950acce070609ee0343920ec68e66b058bc23

libwvdrmengine/cdm/core/test/url_request.cpp

@@ -6,6 +6,7 @@
 
 #include <errno.h>
 
+#include <gtest/gtest.h>
 #include <sstream>
 
 #include "http_socket.h"
@@ -21,6 +22,7 @@ const int kReadBufferSize = 1024;
 const int kConnectTimeoutMs = 15000;
 const int kWriteTimeoutMs = 12000;
 const int kReadTimeoutMs = 12000;
+constexpr int kHttpOk = 200;
 
 const std::string kGoogleHeaderUpper("X-Google");
 const std::string kGoogleHeaderLower("x-google");
@@ -125,6 +127,17 @@ bool UrlRequest::GetResponse(std::string* message) {
   return true;
 }
 
+void UrlRequest::AssertOkResponse(std::string* message) {
+  ASSERT_TRUE(message);
+  ASSERT_TRUE(GetResponse(message));
+  const int status_code = GetStatusCode(*message);
+  ASSERT_EQ(kHttpOk, status_code)
+      << "HTTP response from " << socket_.scheme() << "://"
+      << socket_.domain_name() << ":" << socket_.port()
+      << socket_.resource_path() << ": (" << message->size() << ") :\n"
+      << *message;
+}
+
 // static
 int UrlRequest::GetStatusCode(const std::string& response) {
   const std::string kHttpVersion("HTTP/1.1 ");