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

device/hid/hid_device_info.cc

Index: device/hid/hid_device_info.cc
diff --git a/device/hid/hid_device_info.cc b/device/hid/hid_device_info.cc
index fdc747d4d17a804429ebe5bdaeda0c64d208e271..fedb8b8cc712092d1e471150802023e0907bd10b 100644
--- a/device/hid/hid_device_info.cc
+++ b/device/hid/hid_device_info.cc
@@ -10,6 +10,12 @@ namespace device {
 const char kInvalidHidDeviceId[] = "";
 #endif
 
+HidUsageAndPage::HidUsageAndPage()
+    : usage_page(0),
+      usage(0) {}
+
+HidUsageAndPage::~HidUsageAndPage() {}
+
 HidDeviceInfo::HidDeviceInfo()
     : device_id(kInvalidHidDeviceId),
       bus_type(kHIDBusTypeUSB),
@@ -18,8 +24,6 @@ HidDeviceInfo::HidDeviceInfo()
       input_report_size(0),
       output_report_size(0),
       feature_report_size(0),
-      usage_page(0),
-      usage(0),
       has_report_id(false) {}
 
 HidDeviceInfo::~HidDeviceInfo() {}