WebUI TaskManager: make it default on Chrome OS

chrome/browser/ui/webui/task_manager_dialog.cc

Index: chrome/browser/ui/webui/task_manager_dialog.cc
diff --git a/chrome/browser/ui/webui/task_manager_dialog.cc b/chrome/browser/ui/webui/task_manager_dialog.cc
index b42e637cbe83c5e6501b755e471cb8c15156f22d..72e19d9e1faeac12cd1de4c3d503a631f5734781 100644
--- a/chrome/browser/ui/webui/task_manager_dialog.cc
+++ b/chrome/browser/ui/webui/task_manager_dialog.cc
@@ -20,8 +20,6 @@ class TaskManagerDialogImpl : public HtmlDialogUIDelegate {
   static void Show();
   static TaskManagerDialogImpl* GetInstance();
 
-  void ShowDialog();
-
  protected:
   friend struct DefaultSingletonTraits<TaskManagerDialogImpl>;
   virtual ~TaskManagerDialogImpl();
@@ -63,6 +61,7 @@ class TaskManagerDialogImpl : public HtmlDialogUIDelegate {
   }
 
  private:
+  void ShowDialog();
   void OpenHtmlDialog();
 
   bool is_shown_;
@@ -85,6 +84,12 @@ TaskManagerDialogImpl::TaskManagerDialogImpl() : is_shown_(false) {
 TaskManagerDialogImpl::~TaskManagerDialogImpl() {
 }
 
+void TaskManagerDialogImpl::Show() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  TaskManagerDialogImpl* dialog = TaskManagerDialogImpl::GetInstance();
+  dialog->ShowDialog();
+}
+
 void TaskManagerDialogImpl::ShowDialog() {
   // TODO(yoshiki): Brings up existing UI when called with is_shown_ == TRUE
   if (!is_shown_) {
@@ -107,7 +112,8 @@ void TaskManagerDialogImpl::OpenHtmlDialog() {
 //
 // static
 void TaskManagerDialog::Show() {
-  TaskManagerDialogImpl* dialog = TaskManagerDialogImpl::GetInstance();
-  dialog->ShowDialog();
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      NewRunnableFunction(&TaskManagerDialogImpl::Show));
 }