Introduce Display Compositor mojo interface. Use InProcessContextProvider.

services/ui/ws/mus_gpu_memory_buffer_manager.cc

-// Copyright 2016 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/ws/mus_gpu_memory_buffer_manager.h"
-
-#include "base/logging.h"
-#include "gpu/ipc/client/gpu_memory_buffer_impl.h"
-#include "gpu/ipc/client/gpu_memory_buffer_impl_shared_memory.h"
-#include "gpu/ipc/common/gpu_memory_buffer_support.h"
-#include "services/ui/common/generic_shared_memory_id_generator.h"
-#include "services/ui/gpu/interfaces/gpu_service_internal.mojom.h"
-
-namespace ui {
-
-namespace ws {
-
-MusGpuMemoryBufferManager::MusGpuMemoryBufferManager(
-    mojom::GpuServiceInternal* gpu_service,
-    int client_id)
-    : gpu_service_(gpu_service), client_id_(client_id), weak_factory_(this) {}
-
-MusGpuMemoryBufferManager::~MusGpuMemoryBufferManager() {}
-
-std::unique_ptr<gfx::GpuMemoryBuffer>
-MusGpuMemoryBufferManager::AllocateGpuMemoryBuffer(
-    const gfx::Size& size,
-    gfx::BufferFormat format,
-    gfx::BufferUsage usage,
-    gpu::SurfaceHandle surface_handle) {
-  gfx::GpuMemoryBufferId id = GetNextGenericSharedMemoryId();
-  const bool is_native =
-      gpu::IsNativeGpuMemoryBufferConfigurationSupported(format, usage);
-  if (is_native) {
-    gfx::GpuMemoryBufferHandle handle;
-    gpu_service_->CreateGpuMemoryBuffer(id, size, format, usage, client_id_,
-                                        surface_handle, &handle);
-    if (handle.is_null())
-      return nullptr;
-    return gpu::GpuMemoryBufferImpl::CreateFromHandle(
-        handle, size, format, usage,
-        base::Bind(&MusGpuMemoryBufferManager::DestroyGpuMemoryBuffer,
-                   weak_factory_.GetWeakPtr(), id, client_id_, is_native));
-  }
-
-  DCHECK(gpu::GpuMemoryBufferImplSharedMemory::IsUsageSupported(usage))
-      << static_cast<int>(usage);
-  return gpu::GpuMemoryBufferImplSharedMemory::Create(
-      id, size, format,
-      base::Bind(&MusGpuMemoryBufferManager::DestroyGpuMemoryBuffer,
-                 weak_factory_.GetWeakPtr(), id, client_id_, is_native));
-}
-
-std::unique_ptr<gfx::GpuMemoryBuffer>
-MusGpuMemoryBufferManager::CreateGpuMemoryBufferFromHandle(
-    const gfx::GpuMemoryBufferHandle& handle,
-    const gfx::Size& size,
-    gfx::BufferFormat format) {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-
-void MusGpuMemoryBufferManager::SetDestructionSyncToken(
-    gfx::GpuMemoryBuffer* buffer,
-    const gpu::SyncToken& sync_token) {
-  static_cast<gpu::GpuMemoryBufferImpl*>(buffer)->set_destruction_sync_token(
-      sync_token);
-}
-
-void MusGpuMemoryBufferManager::DestroyGpuMemoryBuffer(
-    gfx::GpuMemoryBufferId id,
-    int client_id,
-    bool is_native,
-    const gpu::SyncToken& sync_token) {
-  if (is_native) {
-    gpu_service_->DestroyGpuMemoryBuffer(id, client_id, sync_token);
-  }
-}
-
-}  // namespace ws
-}  // namespace ui