Adding USB ID vendor and product lookups.

device/device.gyp

Index: device/device.gyp
diff --git a/device/device.gyp b/device/device.gyp
index d1f27e4f15728d21b58a6093b2c33376f563ccf6..a026b1728adc8653a7937bfdb03d792bc30f11af 100644
--- a/device/device.gyp
+++ b/device/device.gyp
@@ -5,6 +5,7 @@
 {
   'variables': {
     'chromium_code': 1,
+    'use_system_usbutils%': 0,

[Paweł Hajdan Jr., 2012/10/31 19:03:21]

nit: This won't be needed with my other comment. :)

   },
   'targets': [
     {
@@ -69,11 +70,53 @@
       ],
     },
     {
+      'target_name': 'device_usb',
+      'type': 'static_library',
+      'sources': [
+        'usb/usb_ids.cc',
+        'usb/usb_ids.h',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'actions': [
+        {
+          'action_name': 'generate_usb_ids',
+          'variables': {
+            'usb_ids_path': '<(DEPTH)/third_party/usb_ids/usb.ids',
+            'usb_ids_py_path': '<(DEPTH)/tools/usb_ids/usb_ids.py',
+          },
+          'conditions': [
+            ['use_system_usbutils==1', {
+              'variables': {
+                'usb_ids_path': '/var/lib/usbutils/usb.ids',

[Paweł Hajdan Jr., 2012/10/31 19:03:21]

nit: You can just let distros configure gyp with the right path. Just do
'usb_ids_path%': '<(DEPTH)/third_party/usb_ids/usb.ids' above (note the "%").

+              },
+            }],
+          ],
+          'inputs': [
+            '<(usb_ids_path)',
+            '<(usb_ids_py_path)',
+          ],
+          'outputs': [
+            '<(SHARED_INTERMEDIATE_DIR)/device/usb/usb_ids_gen.cc',
+          ],
+          'action': [
+            'python',
+            '<(usb_ids_py_path)',
+            '-i', '<(usb_ids_path)',
+            '-o', '<@(_outputs)',
+          ],
+          'process_outputs_as_sources': 1,
+        },
+      ],
+    },
+    {
       'target_name': 'device_unittests',
       'type': '<(gtest_target_type)',
       'dependencies': [
         'device_bluetooth',
         'device_bluetooth_mocks',
+        'device_usb',
         '../base/base.gyp:test_support_base',
         '../content/content.gyp:test_support_content',
         '../testing/gmock.gyp:gmock',
@@ -87,6 +130,7 @@
         'test/device_test_suite.cc',
         'test/device_test_suite.h',
         'test/run_all_unittests.cc',
+        'usb/usb_ids_unittest.cc',
       ],
       'conditions': [
         ['chromeos==1', {