Disables software to accelerated canvas update on Linux AMD GPUs

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index cc1c913d33f31582bfab1e5619fb5003ac541952..b34e6909a82681ff189bf3e9dd063074748a2a8b 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -3812,6 +3812,8 @@ Capabilities GLES2DecoderImpl::GetCapabilities() {
       kGpuFeatureStatusEnabled;
   caps.disable_webgl_rgb_multisampling_usage =
       workarounds().disable_webgl_rgb_multisampling_usage;
+  caps.software_to_accelerated_canvas_upgrade =
+      !workarounds().disable_software_to_accelerated_canvas_upgrade;
   caps.emulate_rgb_buffer_with_rgba =
       workarounds().disable_gl_rgb_format;