[Ozone-GBM] Adding NativeWindowDelegate to IPC window changes to the GPU

ui/ozone/platform/dri/dri_window_manager.cc

Index: ui/ozone/platform/dri/dri_window_manager.cc
diff --git a/ui/ozone/platform/dri/dri_window_manager.cc b/ui/ozone/platform/dri/dri_window_manager.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f95cad74fdcb0fbc2f7505fd39d570c914fef3f2
--- /dev/null
+++ b/ui/ozone/platform/dri/dri_window_manager.cc
@@ -0,0 +1,51 @@
+// 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 "ui/ozone/platform/dri/dri_window_manager.h"
+
+namespace ui {
+
+DriWindowManager::DriWindowManager() : last_allocated_widget_(0) {
+}
+
+DriWindowManager::~DriWindowManager() {
+  DCHECK(delegate_map_.empty());
+}
+
+gfx::AcceleratedWidget DriWindowManager::NextAcceleratedWidget() {
+  // We're not using 0 since other code assumes that a 0 AcceleratedWidget is an
+  // invalid widget.
+  return ++last_allocated_widget_;
+}
+
+void DriWindowManager::AddWindowDelegate(gfx::AcceleratedWidget widget,
+                                         DriWindowDelegate* delegate) {
+  DCHECK(delegate_map_.find(widget) == delegate_map_.end())
+      << "Window delegate already added.";
+  delegate_map_.insert(std::make_pair(widget, delegate));
+}
+
+void DriWindowManager::RemoveWindowDelegate(gfx::AcceleratedWidget widget) {
+  WidgetToDelegateMap::iterator it = delegate_map_.find(widget);
+  DCHECK(it != delegate_map_.end())
+      << "Attempting to remove non-existing delegate.";
+
+  delegate_map_.erase(it);
+}
+
+DriWindowDelegate* DriWindowManager::GetWindowDelegate(
+    gfx::AcceleratedWidget widget) {
+  WidgetToDelegateMap::iterator it = delegate_map_.find(widget);
+  if (it != delegate_map_.end())
+    return it->second;
+
+  NOTREACHED();
+  return NULL;
+}
+
+bool DriWindowManager::HasWindowDelegate(gfx::AcceleratedWidget widget) {
+  return delegate_map_.find(widget) != delegate_map_.end();
+}
+
+}  // namespace ui