Add Windows-specific WPR archives for YouTube system health stories

tools/battor_agent/battor_connection_impl.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/battor_agent/battor_connection_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
@@ skipping 204 matching lines @@
 void BattOrConnectionImpl::OnBytesRead(int bytes_read,
                                        device::serial::ReceiveError error) {
   if (error != device::serial::ReceiveError::NONE) {
     LogSerial(StringPrintf(
         "Read failed due to serial read failure with error code: %d.",
         static_cast<int>(error)));
     EndReadBytes(false, BATTOR_MESSAGE_TYPE_CONTROL, nullptr);
     return;
   }
 
-  if (bytes_read == 0) {
-    // If we didn't have a message before, and we weren't able to read any
-    // additional bytes, then there's no valid message available.
-    LogSerial("Read failed due to no bytes being read.");
-    EndReadBytes(false, BATTOR_MESSAGE_TYPE_CONTROL, nullptr);
-    return;
-  }
+  // NOTE: Zero bytes may have been read.
 
   if (pending_read_message_type_ == BATTOR_MESSAGE_TYPE_SAMPLES) {
     // If we're reading samples, don't log every byte that we receive. This
     // exacerbates a problem on Mac wherein we can't process sample frames
     // quickly enough to prevent the serial buffer from overflowing, causing us
     // to drop frames.
     LogSerial(StringPrintf("%d more bytes read.", bytes_read));
   } else {
     LogSerial(StringPrintf(
         "%d more bytes read: %s.", bytes_read,
@@ skipping 112 matching lines @@
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(&Listener::OnBytesSent, base::Unretained(listener_), success));
 }
 
 void BattOrConnectionImpl::LogSerial(const std::string& str) {
   serial_log_ << str << std::endl << std::endl;
 }
 
 }  // namespace battor