chrome.hid (Win): fail to retrieve device info when used concurrently

device/hid/hid_service_win.cc

 // Copyright 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_service_win.h"
 
 #include <cstdlib>
 
+#include "base/files/file.h"
 #include "base/stl_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "device/hid/hid_connection_win.h"
 #include "device/hid/hid_device_info.h"
 #include "net/base/io_buffer.h"
 
 #if defined(OS_WIN)
 
 #define INITGUID
 
@@ skipping 121 matching lines @@
   }
 }
 
 void HidServiceWin::PlatformAddDevice(const std::string& device_path) {
   HidDeviceInfo device_info;
   device_info.device_id = device_path;
 
   // Try to open the device.
   base::win::ScopedHandle device_handle(
       CreateFileA(device_path.c_str(),
-                  0,
-                  FILE_SHARE_READ,
+                  GENERIC_WRITE | GENERIC_READ,
+                  FILE_SHARE_READ | FILE_SHARE_WRITE,
                   NULL,
                   OPEN_EXISTING,
                   FILE_FLAG_OVERLAPPED,
                   0));
-  if (!device_handle.IsValid())
-    return;
+
+  if (!device_handle.IsValid() &&
+      GetLastError() == base::File::FILE_ERROR_ACCESS_DENIED) {
+    base::win::ScopedHandle device_handle(
+      CreateFileA(device_path.c_str(),
+      GENERIC_READ,
+      FILE_SHARE_READ,
+      NULL,
+      OPEN_EXISTING,
+      FILE_FLAG_OVERLAPPED,
+      0));
+
+    if (!device_handle.IsValid())
+      return;
+  }
 
   // Get VID/PID pair.
   HIDD_ATTRIBUTES attrib = {0};
   attrib.Size = sizeof(HIDD_ATTRIBUTES);
   if (!HidD_GetAttributes(device_handle.Get(), &attrib))
     return;
 
   device_info.vendor_id = attrib.VendorID;
   device_info.product_id = attrib.ProductID;
 
@@ skipping 59 matching lines @@
     return NULL;
   scoped_refptr<HidConnectionWin> connection(new HidConnectionWin(device_info));
   if (!connection->available()) {
     LOG_GETLASTERROR(ERROR) << "Failed to open device.";
     return NULL;
   }
   return connection;
 }
 
 }  // namespace device