Move maximize/fullscreen/restore to shell

ui/aura_shell/show_state_controller.cc

Index: ui/aura_shell/show_state_controller.cc
diff --git a/ui/aura_shell/show_state_controller.cc b/ui/aura_shell/show_state_controller.cc
new file mode 100644
index 0000000000000000000000000000000000000000..39e8c71667996cc8a502a731a27cdfd5a8505788
--- /dev/null
+++ b/ui/aura_shell/show_state_controller.cc
@@ -0,0 +1,50 @@
+// Copyright (c) 2011 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/aura_shell/show_state_controller.h"
+
+#include "ui/aura/aura_constants.h"
+#include "ui/aura/window.h"
+#include "ui/aura_shell/default_container_layout_manager.h"
+#include "ui/aura_shell/property_util.h"
+#include "ui/aura_shell/workspace/workspace.h"
+#include "ui/aura_shell/workspace/workspace_manager.h"
+#include "ui/base/ui_base_types.h"
+
+namespace aura_shell {
+namespace internal {
+
+ShowStateController::ShowStateController(
+    DefaultContainerLayoutManager* layout_manager)
+    : layout_manager_(layout_manager) {
+}
+
+ShowStateController::~ShowStateController() {
+}
+
+void ShowStateController::OnPropertyChanged(aura::Window* window,
+                                            const char* name,
+                                            void* old) {
+  if (name != aura::kShowStateKey)
+    return;
+  if (window->GetIntProperty(name) == ui::SHOW_STATE_NORMAL) {
+    // Restore the size of window first, then let Workspace layout the window.
+    const gfx::Rect* restore = GetRestoreBounds(window);
+    window->SetProperty(aura::kRestoreBoundsKey, NULL);
+    if (restore)
+      window->SetBounds(*restore);
+    delete restore;
+  } else if (old == reinterpret_cast<void*>(ui::SHOW_STATE_NORMAL)) {
+    // Store the restore bounds only if previous state is normal.
+    DCHECK(window->GetProperty(aura::kRestoreBoundsKey) == NULL);
+    SetRestoreBounds(window, window->GetTargetBounds());
+  }
+
+  layout_manager_->set_ignore_calculate_bounds(true);
+  layout_manager_->workspace_manager()->FindBy(window)->Layout(NULL, window);
+  layout_manager_->set_ignore_calculate_bounds(false);
+}
+
+}  // namespace internal
+}  // namespace aura_shell