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

ui/ozone/platform/dri/native_window_manager.cc

+// 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/native_window_manager.h"
+
+namespace ui {
+
+NativeWindowManager::NativeWindowManager() : allocated_widgets_(0) {
+}
+
+NativeWindowManager::~NativeWindowManager() {
+}
+
+gfx::AcceleratedWidget NativeWindowManager::AllocateAcceleratedWidget() {
+  // We're not using 0 since other code assumes that a 0 AcceleratedWidget is an
+  // invalid widget.
+  return ++allocated_widgets_;
+}
+
+void NativeWindowManager::AddNativeWindowDelegate(
+    gfx::AcceleratedWidget widget,
+    NativeWindowDelegate* delegate) {
+  DCHECK(delegate_map_.find(widget) == delegate_map_.end())
+      << "Surface delegate already added.";
+  delegate_map_.insert(std::make_pair(widget, delegate));
+}
+
+void NativeWindowManager::RemoveNativeWindowDelegate(
+    gfx::AcceleratedWidget widget) {
+  std::map<gfx::AcceleratedWidget, NativeWindowDelegate*>::iterator it =
+      delegate_map_.find(widget);
+  DCHECK(it != delegate_map_.end())
+      << "Attempting to remove non-existing delegate.";
+
+  delegate_map_.erase(it);
+}
+
+NativeWindowDelegate* NativeWindowManager::GetNativeWindowDelegate(
+    gfx::AcceleratedWidget widget) {
+  std::map<gfx::AcceleratedWidget, NativeWindowDelegate*>::iterator it =
+      delegate_map_.find(widget);
+  if (it != delegate_map_.end())
+    return it->second;
+
+  NOTREACHED();
+  return NULL;
+}
+
+bool NativeWindowManager::HasNativeWindowDelegate(
+    gfx::AcceleratedWidget widget) {
+  return delegate_map_.find(widget) != delegate_map_.end();
+}
+
+}  // namespace ui