gpu: Add flag for enabling asynchronous worker context.

content/common/gpu/client/context_provider_command_buffer.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/common/gpu/client/context_provider_command_buffer.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <set>
@@ skipping 36 matching lines @@
 };
 }
 
 namespace content {
 
 ContextProviderCommandBuffer::SharedProviders::SharedProviders() = default;
 ContextProviderCommandBuffer::SharedProviders::~SharedProviders() = default;
 
 ContextProviderCommandBuffer::ContextProviderCommandBuffer(
     scoped_refptr<gpu::GpuChannelHost> channel,
+    int32_t stream_id,
+    gpu::GpuStreamPriority stream_priority,
     gpu::SurfaceHandle surface_handle,
     const GURL& active_url,
     gfx::GpuPreference gpu_preference,
     bool automatic_flushes,
     const gpu::SharedMemoryLimits& memory_limits,
     const gpu::gles2::ContextCreationAttribHelper& attributes,
     ContextProviderCommandBuffer* shared_context_provider,
     command_buffer_metrics::ContextType type)
-    : surface_handle_(surface_handle),
+    : stream_id_(stream_id),
+      stream_priority_(stream_priority),
+      surface_handle_(surface_handle),
       active_url_(active_url),
       gpu_preference_(gpu_preference),
       automatic_flushes_(automatic_flushes),
       memory_limits_(memory_limits),
       attributes_(attributes),
       context_type_(type),
       shared_providers_(shared_context_provider
                             ? shared_context_provider->shared_providers_
                             : new SharedProviders),
       channel_(std::move(channel)) {
@@ skipping 59 matching lines @@
       DCHECK_EQ(!!shared_command_buffer, !!share_group);
     }
 
     DCHECK(attributes_.buffer_preserved);
     std::vector<int32_t> serialized_attributes;
     attributes_.Serialize(&serialized_attributes);
 
     // This command buffer is a client-side proxy to the command buffer in the
     // GPU process.
     command_buffer_ = channel_->CreateCommandBuffer(
-        surface_handle_, gfx::Size(), shared_command_buffer,
-        gpu::GpuChannelHost::kDefaultStreamId,
-        gpu::GpuChannelHost::kDefaultStreamPriority, serialized_attributes,
-        active_url_, gpu_preference_);
+        surface_handle_, gfx::Size(), shared_command_buffer, stream_id_,
+        stream_priority_, serialized_attributes, active_url_, gpu_preference_);
     // The command buffer takes ownership of the |channel_|, so no need to keep
     // a reference around here.
     channel_ = nullptr;
     if (!command_buffer_) {
       DLOG(ERROR) << "GpuChannelHost failed to create command buffer.";
       command_buffer_metrics::UmaRecordContextInitFailed(context_type_);
       return false;
     }
 
     // The GLES2 helper writes the command buffer protocol.
@@ skipping 155 matching lines @@
 
 void ContextProviderCommandBuffer::SetLostContextCallback(
     const LostContextCallback& lost_context_callback) {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   DCHECK(lost_context_callback_.is_null() ||
          lost_context_callback.is_null());
   lost_context_callback_ = lost_context_callback;
 }
 
 }  // namespace content