Only launch a second un-sandboxed gpu process on Windows.

content/browser/gpu/gpu_data_manager_impl.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/browser/gpu/gpu_data_manager_impl.h"
 
 #if defined(OS_MACOSX)
 #include <ApplicationServices/ApplicationServices.h>
 #endif  // OS_MACOSX
 
@@ skipping 163 matching lines @@
   CGDisplayRemoveReconfigurationCallback(DisplayReconfigCallback, this);
 #endif
 }
 
 void GpuDataManagerImpl::RequestCompleteGpuInfoIfNeeded() {
   if (complete_gpu_info_already_requested_ || gpu_info_.finalized)
     return;
   complete_gpu_info_already_requested_ = true;
 
   GpuProcessHost::SendOnIO(
+#if defined(OS_WIN)
       GpuProcessHost::GPU_PROCESS_KIND_UNSANDBOXED,
+#else
+      GpuProcessHost::GPU_PROCESS_KIND_SANDBOXED,
+#endif
       CAUSE_FOR_GPU_LAUNCH_GPUDATAMANAGER_REQUESTCOMPLETEGPUINFOIFNEEDED,
       new GpuMsg_CollectGraphicsInfo());
 }
 
 bool GpuDataManagerImpl::IsCompleteGpuInfoAvailable() const {
   return gpu_info_.finalized;
 }
 
 void GpuDataManagerImpl::UpdateGpuInfo(const GPUInfo& gpu_info) {
   // No further update of gpu_info if falling back to software renderer.
@@ skipping 505 matching lines @@
   }
 
   return DOMAIN_BLOCK_STATUS_NOT_BLOCKED;
 }
 
 int64 GpuDataManagerImpl::GetBlockAllDomainsDurationInMs() const {
   return kBlockAllDomainsMs;
 }
 
 }  // namespace content