Check for GpuChannelHost nullity in GetGpuDriverBugWorkarounds

content/renderer/gpu/gpu_benchmarking_extension.cc

Index: content/renderer/gpu/gpu_benchmarking_extension.cc
diff --git a/content/renderer/gpu/gpu_benchmarking_extension.cc b/content/renderer/gpu/gpu_benchmarking_extension.cc
index 42f6995ff233dda56270b1647573847c6c171578..82f1603281b32c65adb16d13332eaf1d1d044c73 100644
--- a/content/renderer/gpu/gpu_benchmarking_extension.cc
+++ b/content/renderer/gpu/gpu_benchmarking_extension.cc
@@ -955,7 +955,8 @@ void GpuBenchmarking::GetGpuDriverBugWorkarounds(gin::Arguments* args) {
   std::vector<std::string> gpu_driver_bug_workarounds;
   gpu::GpuChannelHost* gpu_channel =
       RenderThreadImpl::current()->GetGpuChannel();
-  if (!gpu_channel->Send(new GpuChannelMsg_GetDriverBugWorkArounds(
+  if (!gpu_channel ||
+      !gpu_channel->Send(new GpuChannelMsg_GetDriverBugWorkArounds(
           &gpu_driver_bug_workarounds))) {
     return;
   }