gpu: Unify code to initialize dual-gpu mode.

content/browser/gpu/gpu_data_manager_impl_private.cc

Index: content/browser/gpu/gpu_data_manager_impl_private.cc
diff --git a/content/browser/gpu/gpu_data_manager_impl_private.cc b/content/browser/gpu/gpu_data_manager_impl_private.cc
index bbaba8bb2d25ce8f88aad19cd7a89ea39cc90f59..e245bef6a25cfbdd37330a4bf1764e9692d8d0bd 100644
--- a/content/browser/gpu/gpu_data_manager_impl_private.cc
+++ b/content/browser/gpu/gpu_data_manager_impl_private.cc
@@ -1179,13 +1179,7 @@ void GpuDataManagerImplPrivate::UpdateGpuSwitchingManager(
     vendor_ids.push_back(device.vendor_id);
   }
   ui::GpuSwitchingManager::GetInstance()->SetGpuVendorIds(vendor_ids);
-
-  if (ui::GpuSwitchingManager::GetInstance()->SupportsDualGpus()) {
-    if (gpu_driver_bugs_.count(gpu::FORCE_DISCRETE_GPU) == 1)
-      ui::GpuSwitchingManager::GetInstance()->ForceUseOfDiscreteGpu();
-    else if (gpu_driver_bugs_.count(gpu::FORCE_INTEGRATED_GPU) == 1)
-      ui::GpuSwitchingManager::GetInstance()->ForceUseOfIntegratedGpu();
-  }
+  gpu::InitializeDualGpusIfSupported(gpu_driver_bugs_);
 }
 
 void GpuDataManagerImplPrivate::NotifyGpuInfoUpdate() {