gpu/config: remove CollectGpuID

gpu/config/gpu_info_collector_mac.mm

 // 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.
 
 #include "gpu/config/gpu_info_collector.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
@@ skipping 164 matching lines @@
 CollectInfoResult CollectContextGraphicsInfo(GPUInfo* gpu_info) {
   DCHECK(gpu_info);
 
   TRACE_EVENT0("gpu", "gpu_info_collector::CollectGraphicsInfo");
 
   CollectInfoResult result = CollectGraphicsInfoGL(gpu_info);
   gpu_info->context_info_state = result;
   return result;
 }
 
-CollectInfoResult CollectGpuID(uint32_t* vendor_id, uint32_t* device_id) {
-  DCHECK(vendor_id && device_id);
-
-  GPUInfo::GPUDevice gpu = GetActiveGPU();
-  *vendor_id = gpu.vendor_id;
-  *device_id = gpu.device_id;
-
-  if (*vendor_id != 0 && *device_id != 0)
-    return kCollectInfoSuccess;
-  return kCollectInfoNonFatalFailure;
-}
-
 CollectInfoResult CollectBasicGraphicsInfo(GPUInfo* gpu_info) {
   DCHECK(gpu_info);
 
   int32_t model_major = 0, model_minor = 0;
   base::mac::ParseModelIdentifier(base::mac::GetModelIdentifier(),
                                   &gpu_info->machine_model_name,
                                   &model_major, &model_minor);
   gpu_info->machine_model_version =
       base::IntToString(model_major) + "." + base::IntToString(model_minor);
 
@@ skipping 15 matching lines @@
   gpu_info->driver_version = gpu_info->gl_version.substr(pos + 1);
   return kCollectInfoSuccess;
 }
 
 void MergeGPUInfo(GPUInfo* basic_gpu_info,
                   const GPUInfo& context_gpu_info) {
   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 }
 
 }  // namespace gpu