chrome.hid : enrich device info with Top-Level collections usages

chrome/browser/extensions/api/hid/hid_device_manager.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 "chrome/browser/extensions/api/hid/hid_device_manager.h"
 
 #include <limits>
 #include <vector>
 
 #include "base/lazy_instance.h"
@@ skipping 31 matching lines @@
     int resource_id = device_iter->first;
     device::HidDeviceId device_id = device_iter->second;
     device::HidDeviceInfo device_info;
     if (hid_service->GetDeviceInfo(device_id, &device_info)) {
       if (device_info.vendor_id == vendor_id &&
           device_info.product_id == product_id) {
         api::hid::HidDeviceInfo api_device_info;
         api_device_info.device_id = resource_id;
         api_device_info.vendor_id = device_info.vendor_id;
         api_device_info.product_id = device_info.product_id;
+        for (std::vector<device::HidUsageAndPage>::const_iterator usage_iter =
+                 device_info.usages.begin();
+             usage_iter != device_info.usages.end();
+             ++usage_iter) {
+          api::hid::HidUsageAndPage* usage_and_page =
+              new api::hid::HidUsageAndPage();
+          usage_and_page->usage_page = (*usage_iter).usage_page;
+          usage_and_page->usage = (*usage_iter).usage;
+          linked_ptr<api::hid::HidUsageAndPage> usage_and_page_ptr(
+              usage_and_page);
+          api_device_info.usages.push_back(usage_and_page_ptr);
+        }
         api_devices->Append(api_device_info.ToValue().release());
       }
     }
   }
   return scoped_ptr<base::ListValue>(api_devices);
 }
 
 bool HidDeviceManager::GetDeviceInfo(int resource_id,
                                      device::HidDeviceInfo* device_info) {
   UpdateDevices();
@@ skipping 34 matching lines @@
       new_id = next_resource_id_++;
     }
     new_resource_ids[device_info.device_id] = new_id;
     new_device_ids[new_id] = device_info.device_id;
   }
   device_ids_.swap(new_device_ids);
   resource_ids_.swap(new_resource_ids);
 }
 
 }  // namespace extensions