gpu/config: remove CollectGpuID

gpu/config/gpu_info_collector_win.cc

Index: gpu/config/gpu_info_collector_win.cc
diff --git a/gpu/config/gpu_info_collector_win.cc b/gpu/config/gpu_info_collector_win.cc
index 8dab759f23ca11410c90ba3a8aefc28fe5a7e4a9..7bd66e486eca84bec1952261c30fd22f1a2c79d1 100644
--- a/gpu/config/gpu_info_collector_win.cc
+++ b/gpu/config/gpu_info_collector_win.cc
@@ -305,30 +305,6 @@ CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
   return kCollectInfoSuccess;
 }
 
-CollectInfoResult CollectGpuID(uint32_t* vendor_id, uint32_t* device_id) {
-  DCHECK(vendor_id && device_id);
-  *vendor_id = 0;
-  *device_id = 0;
-
-  // Taken from http://www.nvidia.com/object/device_ids.html
-  DISPLAY_DEVICE dd;
-  dd.cb = sizeof(DISPLAY_DEVICE);
-  std::wstring id;
-  for (int i = 0; EnumDisplayDevices(NULL, i, &dd, 0); ++i) {
-    if (dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE) {
-      id = dd.DeviceID;
-      break;
-    }
-  }
-
-  if (id.length() > 20) {
-    DeviceIDToVendorAndDevice(id, vendor_id, device_id);
-    if (*vendor_id != 0 && *device_id != 0)
-      return kCollectInfoSuccess;
-  }
-  return kCollectInfoNonFatalFailure;
-}
-
 CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
   TRACE_EVENT0("gpu", "CollectPreliminaryGraphicsInfo");