ozone: Introduce ClientPixmap and ClientPixmapFactory for non-GPU processes.

content/browser/gpu/browser_native_pixmap_manager_ozone.cc

+// Copyright 2015 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/gpu/browser_native_pixmap_manager_ozone.h"
+
+#include "base/file_descriptor_posix.h"
+#include "base/memory/singleton.h"
+
+namespace content {
+
+struct BrowserNativePixmapManagerTrait
+    : public DefaultSingletonTraits<BrowserNativePixmapManager> {
+  static BrowserNativePixmapManager* New() {
+    BrowserNativePixmapManager* manager = new BrowserNativePixmapManager();
+    manager->Initialize(base::FileDescriptor());
+    return manager;
+  }
+};
+
+// static
+BrowserNativePixmapManager* BrowserNativePixmapManager::GetInstance() {
+  return Singleton<BrowserNativePixmapManager,
+                   BrowserNativePixmapManagerTrait>::get();
+}
+
+BrowserNativePixmapManager::BrowserNativePixmapManager() {}
+
+BrowserNativePixmapManager::~BrowserNativePixmapManager() {}
+
+void BrowserNativePixmapManager::Initialize(
+    const base::FileDescriptor& device_fd) {
+  pixmap_manager_ = ui::NativePixmapManager::Create(device_fd);
+}
+
+std::vector<ui::NativePixmapManager::Configuration>
+BrowserNativePixmapManager::GetSupportedNativePixmapConfigurations() const {
+  return pixmap_manager_->GetSupportedNativePixmapConfigurations();
+}
+
+}  // namespace content