Windows: do not collect D3D11 stats if DisplayLink DLL is loaded.

content/gpu/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 "content/gpu/gpu_info_collector.h"
 
 // This has to be included before windows.h.
 #include "third_party/re2/re2/re2.h"
 
 #include <windows.h>
@@ skipping 186 matching lines @@
     FEATURE_LEVEL_10_0,
     FEATURE_LEVEL_10_1,
     FEATURE_LEVEL_11_0,
     NUM_FEATURE_LEVELS
   };
 
   // Windows XP is expected to not support D3D11.
   if (base::win::GetVersion() <= base::win::VERSION_XP)
     return;
 
+  // Creating a D3D11 device when DisplayLink is installed causes D3D11 to
+  // crash.
+  if (GetModuleHandle(L"dlumd32.dll"))
+    return;
+
   FeatureLevel feature_level = FEATURE_LEVEL_UNKNOWN;
   UINT bgra_support = 0;
 
   base::ScopedNativeLibrary module(FilePath(L"d3d11.dll"));
   if (!module.is_valid()) {
     feature_level = FEATURE_LEVEL_NO_D3D11_DLL;
   } else {
     D3D11CreateDeviceFunc create_func =
         reinterpret_cast<D3D11CreateDeviceFunc>(
             module.GetFunctionPointer("D3D11CreateDevice"));
@@ skipping 295 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_info_collector