gpu: Add flag for enabling asynchronous worker context.

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/gpu/render_widget_compositor.h"
 
 #include <stddef.h>
 #include <limits>
 #include <string>
 #include <utility>
@@ skipping 275 matching lines @@
 
   settings.max_untiled_layer_size = gfx::Size(max_untiled_layer_width,
                                            max_untiled_layer_height);
 
   settings.gpu_rasterization_msaa_sample_count =
       compositor_deps_->GetGpuRasterizationMSAASampleCount();
   settings.gpu_rasterization_forced =
       compositor_deps_->IsGpuRasterizationForced();
   settings.gpu_rasterization_enabled =
       compositor_deps_->IsGpuRasterizationEnabled();
+  settings.async_worker_context_enabled =
+      compositor_deps_->IsAsyncWorkerContextEnabled();
 
   settings.can_use_lcd_text = compositor_deps_->IsLcdTextEnabled();
   settings.use_distance_field_text =
       compositor_deps_->IsDistanceFieldTextEnabled();
   settings.use_zero_copy = compositor_deps_->IsZeroCopyEnabled();
   settings.use_partial_raster = compositor_deps_->IsPartialRasterEnabled();
   settings.enable_elastic_overscroll =
       compositor_deps_->IsElasticOverscrollEnabled();
   settings.renderer_settings.use_gpu_memory_buffer_resources =
       compositor_deps_->IsGpuMemoryBufferCompositorResourcesEnabled();
@@ skipping 815 matching lines @@
 #endif
   return actual;
 }
 
 void RenderWidgetCompositor::SetPaintedDeviceScaleFactor(
     float device_scale) {
   layer_tree_host_->SetPaintedDeviceScaleFactor(device_scale);
 }
 
 }  // namespace content