Revert of Use the updated AMD switchable info collection code.

gpu/config/gpu_info_collector_win.cc

 // 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"
 
 // This has to be included before windows.h.
 #include "third_party/re2/re2/re2.h"
 
 #include <windows.h>
@@ skipping 345 matching lines @@
 void CollectD3D11Support() {
   // D3D11 takes about 50ms to initialize so do this on a worker thread.
   base::WorkerPool::PostTask(
       FROM_HERE,
       base::Bind(CollectD3D11SupportOnWorkerThread),
       false);
 }
 }  // namespace anonymous
 
 #if !defined(GOOGLE_CHROME_BUILD)
-void GetAMDVideocardInfo(GPUInfo* gpu_info) {
-  DCHECK(gpu_info);
-  return;
+AMDVideoCardType GetAMDVideocardType() {
+  return STANDALONE;
 }
 #else
 // This function has a real implementation for official builds that can
 // be found in src/third_party/amd.
-void GetAMDVideocardInfo(GPUInfo* gpu_info);
+AMDVideoCardType GetAMDVideocardType();
 #endif
 
 bool CollectDriverInfoD3D(const std::wstring& device_id,
                           GPUInfo* gpu_info) {
   TRACE_EVENT0("gpu", "CollectDriverInfoD3D");
 
   // create device info for the display device
   HDEVINFO device_info = SetupDiGetClassDevsW(
       NULL, device_id.c_str(), NULL,
       DIGCF_PRESENT | DIGCF_PROFILE | DIGCF_ALLCLASSES);
@@ skipping 43 matching lines @@
             key, L"ProviderName", NULL, NULL,
             reinterpret_cast<LPBYTE>(value), &dwcb_data);
         if (result == ERROR_SUCCESS) {
           driver_vendor = base::UTF16ToASCII(std::wstring(value));
           if (driver_vendor == "Advanced Micro Devices, Inc." ||
               driver_vendor == "ATI Technologies Inc.") {
             // We are conservative and assume that in the absence of a clear
             // signal the videocard is assumed to be switchable. Additionally,
             // some switchable systems with Intel GPUs aren't correctly
             // detected, so always count them.
-            GetAMDVideocardInfo(gpu_info);
-            if (!gpu_info->amd_switchable &&
-                gpu_info->gpu.vendor_id == 0x8086) {
-              gpu_info->amd_switchable = true;
-              gpu_info->secondary_gpus.push_back(gpu_info->gpu);
-              gpu_info->gpu.vendor_id = 0x1002;
-              gpu_info->gpu.device_id = 0;  // Unknown discrete AMD GPU.
-            }
+            AMDVideoCardType amd_card_type = GetAMDVideocardType();
+            gpu_info->amd_switchable = (gpu_info->gpu.vendor_id == 0x8086) ||
+                                       (amd_card_type != STANDALONE);
           }
         }
 
         gpu_info->driver_vendor = driver_vendor;
         gpu_info->driver_version = driver_version;
         gpu_info->driver_date = driver_date;
         found = true;
         RegCloseKey(key);
         break;
       }
@@ skipping 198 matching lines @@
     basic_gpu_info->software_rendering = true;
     return;
   }
 
   MergeGPUInfoGL(basic_gpu_info, context_gpu_info);
 
   basic_gpu_info->dx_diagnostics = context_gpu_info.dx_diagnostics;
 }
 
 }  // namespace gpu