mus: Use ui::ContextProviderCommandBuffer.

services/ui/public/cpp/gles2_context.cc

Index: services/ui/public/cpp/gles2_context.cc
diff --git a/services/ui/public/cpp/gles2_context.cc b/services/ui/public/cpp/gles2_context.cc
deleted file mode 100644
index 9ff0477a703b88dd5c71046b064985727f746295..0000000000000000000000000000000000000000
--- a/services/ui/public/cpp/gles2_context.cc
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright 2014 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 "services/ui/public/cpp/gles2_context.h"
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <utility>
-
-#include "gpu/command_buffer/client/gles2_cmd_helper.h"
-#include "gpu/command_buffer/client/shared_memory_limits.h"
-#include "gpu/command_buffer/client/transfer_buffer.h"
-#include "gpu/ipc/client/command_buffer_proxy_impl.h"
-#include "gpu/ipc/client/gpu_channel_host.h"
-#include "mojo/public/cpp/system/core.h"
-#include "url/gurl.h"
-
-namespace ui {
-
-GLES2Context::GLES2Context() {}
-
-GLES2Context::~GLES2Context() {}
-
-bool GLES2Context::Initialize(
-    scoped_refptr<gpu::GpuChannelHost> gpu_channel_host,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
-  DCHECK(gpu_channel_host);
-  gpu::SurfaceHandle surface_handle = gfx::kNullAcceleratedWidget;
-  // TODO(penghuang): support shared group.
-  gpu::CommandBufferProxyImpl* shared_command_buffer = nullptr;
-  gpu::GpuStreamId stream_id = gpu::GpuStreamId::GPU_STREAM_DEFAULT;
-  gpu::GpuStreamPriority stream_priority = gpu::GpuStreamPriority::NORMAL;
-  gpu::gles2::ContextCreationAttribHelper attributes;
-  // TODO(penghuang): figure a useful active_url.
-  GURL active_url;
-  command_buffer_proxy_impl_ = gpu::CommandBufferProxyImpl::Create(
-      std::move(gpu_channel_host), surface_handle, shared_command_buffer,
-      stream_id, stream_priority, attributes, active_url,
-      std::move(task_runner));
-  if (!command_buffer_proxy_impl_)
-    return false;
-  gpu::CommandBuffer* command_buffer = command_buffer_proxy_impl_.get();
-  gpu::GpuControl* gpu_control = command_buffer_proxy_impl_.get();
-
-  constexpr gpu::SharedMemoryLimits default_limits;
-  gles2_helper_.reset(new gpu::gles2::GLES2CmdHelper(command_buffer));
-  if (!gles2_helper_->Initialize(default_limits.command_buffer_size))
-    return false;
-  gles2_helper_->SetAutomaticFlushes(false);
-  transfer_buffer_.reset(new gpu::TransferBuffer(gles2_helper_.get()));
-  gpu::Capabilities capabilities = gpu_control->GetCapabilities();
-  bool bind_generates_resource =
-      !!capabilities.bind_generates_resource_chromium;
-  // TODO(piman): Some contexts (such as compositor) want this to be true, so
-  // this needs to be a public parameter.
-  bool lose_context_when_out_of_memory = false;
-  bool support_client_side_arrays = false;
-  implementation_.reset(new gpu::gles2::GLES2Implementation(
-      gles2_helper_.get(), NULL, transfer_buffer_.get(),
-      bind_generates_resource, lose_context_when_out_of_memory,
-      support_client_side_arrays, gpu_control));
-  if (!implementation_->Initialize(default_limits.start_transfer_buffer_size,
-                                   default_limits.min_transfer_buffer_size,
-                                   default_limits.max_transfer_buffer_size,
-                                   default_limits.mapped_memory_reclaim_limit))
-    return false;
-  return true;
-}
-
-// static
-std::unique_ptr<GLES2Context> GLES2Context::CreateOffscreenContext(
-    scoped_refptr<gpu::GpuChannelHost> gpu_channel_host,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
-  if (!gpu_channel_host)
-    return nullptr;
-
-  // Return the GLES2Context only if it is successfully initialized. If
-  // initialization fails, then return null.
-  std::unique_ptr<GLES2Context> gles2_context(new GLES2Context);
-  if (!gles2_context->Initialize(std::move(gpu_channel_host),
-                                 std::move(task_runner)))
-    gles2_context.reset();
-  return gles2_context;
-}
-
-}  // namespace ui