Pad HID output reports on Windows to the maximum output report size.

device/hid/hid_connection.cc

 // Copyright (c) 2014 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 "device/hid/hid_connection.h"
 
 #include <algorithm>
 
 namespace device {
 
@@ skipping 81 matching lines @@
 
 void HidConnection::Write(scoped_refptr<net::IOBuffer> buffer,
                           size_t size,
                           const WriteCallback& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (device_info_->max_output_report_size() == 0) {
     VLOG(1) << "This device does not support output reports.";
     callback.Run(false);
     return;
   }
+  if (size > device_info_->max_output_report_size() + 1) {
+    VLOG(1) << "Output report buffer too long (" << size << " > "
+            << (device_info_->max_output_report_size() + 1) << ").";
+    callback.Run(false);
+    return;
+  }
   DCHECK_GE(size, 1u);
   uint8_t report_id = buffer->data()[0];
   if (device_info_->has_report_id() != (report_id != 0)) {
     VLOG(1) << "Invalid output report ID.";
     callback.Run(false);
     return;
   }
   if (IsReportIdProtected(report_id)) {
     VLOG(1) << "Attempt to set a protected output report.";
     callback.Run(false);
@@ skipping 76 matching lines @@
 
 PendingHidReport::PendingHidReport() {}
 
 PendingHidReport::~PendingHidReport() {}
 
 PendingHidRead::PendingHidRead() {}
 
 PendingHidRead::~PendingHidRead() {}
 
 }  // namespace device