gpu: Add flag for enabling asynchronous worker context.

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 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/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include <utility>
 
@@ skipping 168 matching lines @@
   limits.min_transfer_buffer_size = 4 * 1024;
   limits.max_transfer_buffer_size = full_screen_texture_size_in_bytes;
   // This context is used for doing async readbacks, so allow at least a full
   // screen readback to be mapped.
   limits.mapped_memory_reclaim_limit = full_screen_texture_size_in_bytes;
 
   bool automatic_flushes = false;
   GURL url("chrome://gpu/RenderWidgetHostViewAndroid");
 
   provider_ = new ContextProviderCommandBuffer(
-      std::move(gpu_channel_host), gpu::kNullSurfaceHandle, url,
+      std::move(gpu_channel_host), gpu::GPU_STREAM_DEFAULT,
+      gpu::GpuStreamPriority::NORMAL, gpu::kNullSurfaceHandle, url,
       gfx::PreferIntegratedGpu, automatic_flushes, limits, attributes, nullptr,
       command_buffer_metrics::BROWSER_OFFSCREEN_MAINTHREAD_CONTEXT);
   if (!provider_->BindToCurrentThread())
     return;
   provider_->ContextGL()->TraceBeginCHROMIUM(
       "gpu_toplevel",
       base::StringPrintf("CmdBufferImageTransportFactory-%p", provider_.get())
           .c_str());
   provider_->SetLostContextCallback(
       base::Bind(&GLHelperHolder::OnContextLost, base::Unretained(this)));
@@ skipping 1813 matching lines @@
   results->orientationAngle = display.RotationAsDegree();
   results->orientationType =
       RenderWidgetHostViewBase::GetOrientationTypeForMobile(display);
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 }  // namespace content