Make gpu black list work again on Linux

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 e5b67abd97df7f27fa699b458ce8c13ab6c6231c..60b30cd0f5776e6b6f66d0a21948120cfbe109e8 100644
--- a/content/renderer/gpu/gpu_benchmarking_extension.cc
+++ b/content/renderer/gpu/gpu_benchmarking_extension.cc
@@ -467,6 +467,7 @@ gin::ObjectTemplateBuilder GpuBenchmarking::GetObjectTemplateBuilder(
       .SetMethod("runMicroBenchmark", &GpuBenchmarking::RunMicroBenchmark)
       .SetMethod("sendMessageToMicroBenchmark",
                  &GpuBenchmarking::SendMessageToMicroBenchmark)
+      .SetMethod("hasGpuChannel", &GpuBenchmarking::HasGpuChannel)
       .SetMethod("hasGpuProcess", &GpuBenchmarking::HasGpuProcess);
 }
 
@@ -868,9 +869,13 @@ bool GpuBenchmarking::SendMessageToMicroBenchmark(
                                                            std::move(value));
 }
 
+bool GpuBenchmarking::HasGpuChannel() {
+  GpuChannelHost* gpu_channel = RenderThreadImpl::current()->GetGpuChannel();
+  return !!gpu_channel;
+}
+
 bool GpuBenchmarking::HasGpuProcess() {
-    GpuChannelHost* gpu_channel = RenderThreadImpl::current()->GetGpuChannel();
-    return !!gpu_channel;
+  return RenderThreadImpl::current()->HasGpuProcess();
 }
 
 }  // namespace content