Adding USB ID vendor and product lookups.

device/usb/usb_ids.h

Index: device/usb/usb_ids.h
diff --git a/device/usb/usb_ids.h b/device/usb/usb_ids.h
new file mode 100644
index 0000000000000000000000000000000000000000..2f6b95026d70e4241b6f889d05474b33f5d1d687
--- /dev/null
+++ b/device/usb/usb_ids.h
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+// 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.
+
+#ifndef DEVICE_USB_USB_IDS_H_
+#define DEVICE_USB_USB_IDS_H_
+
+#include <stdint.h>
+
+#include "base/basictypes.h"
+
+namespace device {
+
+struct UsbProduct {
+  const uint16_t id;
+  const char* name;
+};
+
+struct UsbVendor {
+  const uint16_t id;
+  const char* name;
+  const size_t product_size;
+  const UsbProduct* products;
+};
+
+// UsbIds provides a static mapping from a vendor ID to a name, as well as a
+// mapping from a vendor/product ID pair to a product name.
+class UsbIds {
+ public:
+  // Gets the name of the vendor who owns |vendor_id|. Returns NULL if the
+  // specified |vendor_id| does not exist.
+  static const char* GetVendorName(uint16_t vendor_id);
+
+  // Gets the name of a product belonging to a specific vendor. If either
+  // |vendor_id| refers to a vendor that does not exist, or |vendor_id| is valid
+  // but |product_id| refers to a product that does not exist, this method
+  // returns NULL.
+  static const char* GetProductName(uint16_t vendor_id, uint16_t product_id);
+
+ private:
+  UsbIds();
+  ~UsbIds();
+
+  // Finds the static UsbVendor associated with |vendor_id|. Returns NULL if no
+  // such vendor exists.
+  static const UsbVendor* FindVendor(uint16_t vendor_id);
+
+  // These fields are defined in a generated file. See device/device.gyp for
+  // more information on how they are generated.
+  static const size_t vendor_size_;
+  static const UsbVendor vendors_[];
+
+  DISALLOW_COPY_AND_ASSIGN(UsbIds);
+};
+
+}  // namespace device
+
+#endif  // DEVICE_USB_USB_IDS_H_