Fix initial focus of Task Manager for ChromeOS.

chrome/browser/ui/views/task_manager_view.cc

Index: chrome/browser/ui/views/task_manager_view.cc
diff --git a/chrome/browser/ui/views/task_manager_view.cc b/chrome/browser/ui/views/task_manager_view.cc
index d9c65284c931dad5aa5c133b642574dada15ac2f..6d9eafc52b839fb8c271dd91e0645735990f569d 100644
--- a/chrome/browser/ui/views/task_manager_view.cc
+++ b/chrome/browser/ui/views/task_manager_view.cc
@@ -161,6 +161,10 @@ bool TaskManagerView::AcceleratorPressed(const ui::Accelerator& accelerator) {
   return true;
 }
 
+views::View* TaskManagerView::GetInitiallyFocusedView() {
+  return nullptr;
+}
+
 bool TaskManagerView::CanResize() const {
   return true;
 }