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

ui/ozone/public/client_native_pixmap_factory.cc

Index: ui/ozone/public/client_native_pixmap_factory.cc
diff --git a/ui/ozone/public/client_native_pixmap_factory.cc b/ui/ozone/public/client_native_pixmap_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cd224944dafa6c1edac8af9f6695c8cccbebb1eb
--- /dev/null
+++ b/ui/ozone/public/client_native_pixmap_factory.cc
@@ -0,0 +1,43 @@
+// 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 "ui/ozone/public/client_native_pixmap_factory.h"
+
+#include "base/trace_event/trace_event.h"
+#include "ui/ozone/platform_object.h"
+#include "ui/ozone/platform_selection.h"
+
+namespace ui {
+
+namespace {
+
+ClientNativePixmapFactory* g_instance = nullptr;
+
+}  // namespace
+
+// static
+ClientNativePixmapFactory* ClientNativePixmapFactory::GetInstance() {
+  return g_instance;
+}
+
+// static
+void ClientNativePixmapFactory::SetInstance(
+    ClientNativePixmapFactory* instance) {
+  DCHECK(!g_instance);
+  DCHECK(instance);
+  g_instance = instance;
+}
+
+// static
+scoped_ptr<ClientNativePixmapFactory> ClientNativePixmapFactory::Create() {
+  TRACE_EVENT1("ozone", "ClientNativePixmapFactory::Create", "platform",
+               GetOzonePlatformName());
+  return PlatformObject<ClientNativePixmapFactory>::Create();
+}
+
+ClientNativePixmapFactory::ClientNativePixmapFactory() {}
+
+ClientNativePixmapFactory::~ClientNativePixmapFactory() {}
+
+}  // namespace ui