Parallel download browser test.

content/public/test/test_download_request_handler.cc

Index: content/public/test/test_download_request_handler.cc
diff --git a/content/public/test/test_download_request_handler.cc b/content/public/test/test_download_request_handler.cc
index 180f37f22ca89108f2ee2ad4076b183e35a7c511..d7d05a85c6e32c459bdca7b12bd778a94e374727 100644
--- a/content/public/test/test_download_request_handler.cc
+++ b/content/public/test/test_download_request_handler.cc
@@ -412,6 +412,7 @@ void TestDownloadRequestHandler::PartialResponseJob::HandleOnStartDefault() {
       HeadersFromString(base::StringPrintf("HTTP/1.1 200 Success\r\n"
                                            "Content-Length: %" PRId64 "\r\n",
                                            parameters_->size));
+  response_info_.connection_info = parameters_->connection_type;
   AddCommonEntityHeaders();
   NotifyHeadersCompleteAndPrepareToRead();
   return;
@@ -454,6 +455,7 @@ bool TestDownloadRequestHandler::PartialResponseJob::
           "Content-Length: %" PRId64 "\r\n",
           requested_range_begin_, requested_range_end_, parameters_->size,
           (requested_range_end_ - requested_range_begin_) + 1));
+  response_info_.connection_info = parameters_->connection_type;
   AddCommonEntityHeaders();
   NotifyHeadersCompleteAndPrepareToRead();
   return true;
@@ -585,7 +587,9 @@ TestDownloadRequestHandler::Parameters::Parameters()
       content_type("application/octet-stream"),
       size(102400),
       pattern_generator_seed(1),
-      support_byte_ranges(true) {}
+      support_byte_ranges(true),
+      connection_type(
+          net::HttpResponseInfo::ConnectionInfo::CONNECTION_INFO_UNKNOWN) {}
 
 // Copy and move constructors / assignment operators are all defaults.
 TestDownloadRequestHandler::Parameters::Parameters(const Parameters&) = default;
@@ -599,6 +603,7 @@ TestDownloadRequestHandler::Parameters::Parameters(Parameters&& that)
       size(that.size),
       pattern_generator_seed(that.pattern_generator_seed),
       support_byte_ranges(that.support_byte_ranges),
+      connection_type(that.connection_type),
       on_start_handler(that.on_start_handler),
       injected_errors(std::move(that.injected_errors)) {}