gpu: Use mojom API for recording log messages to the host.

services/ui/ws/gpu_host.cc

Index: services/ui/ws/gpu_host.cc
diff --git a/services/ui/ws/gpu_host.cc b/services/ui/ws/gpu_host.cc
index 515e19fdf33e3667c625533a8135b6f7506ff580..76fe6d833a86d4428c4bf9191bfead8c41b7e6cf 100644
--- a/services/ui/ws/gpu_host.cc
+++ b/services/ui/ws/gpu_host.cc
@@ -193,5 +193,9 @@ void GpuHost::StoreShaderToDisk(int32_t client_id,
                                 const std::string& key,
                                 const std::string& shader) {}
 
+void GpuHost::RecordLogMessage(int32_t severity,
+                               const std::string& header,
+                               const std::string& message) {}
+
 }  // namespace ws
 }  // namespace ui