Import libusb 1.0.9-rc3 into third_party

third_party/libusb/libusb.gyp

Index: third_party/libusb/libusb.gyp
diff --git a/third_party/libusb/libusb.gyp b/third_party/libusb/libusb.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..45a0b1bd48eabeff7f749f7b8ee83a3741c98202
--- /dev/null
+++ b/third_party/libusb/libusb.gyp
@@ -0,0 +1,67 @@
+# Copyright (c) 2012 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'libusb',
+      'type': '<(library)',
+      'sources': [
+        'libusb/core.c',
+        'libusb/descriptor.c',
+        'libusb/io.c',
+        'libusb/sync.c',
+      ],
+      'include_dirs': [
+        '.',
+        'libusb',
+        'libusb/os',
+      ],
+      'conditions': [
+        [ 'OS == "linux"', {
+          'sources': [
+            'libusb/os/linux_usbfs.c',
+            'libusb/os/threads_posix.c',
+          ],
+          'defines': [
+            'DEFAULT_VISIBILITY=',
+            'HAVE_POLL_H=1',
+            'HAVE_SYS_TIME_H=1',
+            'OS_LINUX=1',
+            'POLL_NFDS_TYPE=nfds_t',
+            'THREADS_POSIX=1',
+            '_GNU_SOURCE=1',
+          ],
+        }],
+        [ 'OS == "win"', {
+          'sources': [
+            'libusb/os/windows_usb.c',
+            'libusb/os/threads_windows.c',
+          ],
+          'include_dirs!': [
+            '.',
+          ],
+          'include_dirs': [
+            'msvc',
+          ],
+        }],
+        [ 'OS == "mac"', {
+          'sources': [
+            'libusb/os/darwin_usb.c',
+            'libusb/os/threads_posix.c',
+          ],
+          'defines': [
+            'DEFAULT_VISIBILITY=',
+            'HAVE_POLL_H=1',
+            'HAVE_SYS_TIME_H=1',
+            'OS_DARWIN=1',
+            'POLL_NFDS_TYPE=nfds_t',
+            'THREADS_POSIX=1',
+            '_GNU_SOURCE=1',
+          ],
+        }],
+      ],
+    },
+  ],
+}