mash: Move directly linked NewWindowDelegate to mojom::NewWindowClient.

ash/shell/shell_delegate_impl.cc

Index: ash/shell/shell_delegate_impl.cc
diff --git a/ash/shell/shell_delegate_impl.cc b/ash/shell/shell_delegate_impl.cc
index 5f9c01e06eedd78b3d8fd15bd0081fe834636df5..e27052d218e74ddabe2dc2b7ce5a10d146430dec 100644
--- a/ash/shell/shell_delegate_impl.cc
+++ b/ash/shell/shell_delegate_impl.cc
@@ -9,7 +9,6 @@
 #include "ash/common/default_accessibility_delegate.h"
 #include "ash/common/gpu_support_stub.h"
 #include "ash/common/media_delegate.h"
-#include "ash/common/new_window_delegate.h"
 #include "ash/common/palette_delegate.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/system/tray/default_system_tray_delegate.h"
@@ -37,31 +36,6 @@ namespace ash {
 namespace shell {
 namespace {
 
-class NewWindowDelegateImpl : public NewWindowDelegate {
- public:
-  NewWindowDelegateImpl() {}
-  ~NewWindowDelegateImpl() override {}
-
-  // NewWindowDelegate:
-  void NewTab() override {}
-  void NewWindow(bool incognito) override {
-    ToplevelWindow::CreateParams create_params;
-    create_params.can_resize = true;
-    create_params.can_maximize = true;
-    ToplevelWindow::CreateToplevelWindow(create_params);
-  }
-  void OpenFileManager() override {}
-  void OpenCrosh() override {}
-  void OpenGetHelp() override {}
-  void RestoreTab() override {}
-  void ShowKeyboardOverlay() override {}
-  void ShowTaskManager() override {}
-  void OpenFeedbackPage() override {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(NewWindowDelegateImpl);
-};
-
 class MediaDelegateImpl : public MediaDelegate {
  public:
   MediaDelegateImpl() {}
@@ -269,10 +243,6 @@ AccessibilityDelegate* ShellDelegateImpl::CreateAccessibilityDelegate() {
   return new DefaultAccessibilityDelegate;
 }
 
-NewWindowDelegate* ShellDelegateImpl::CreateNewWindowDelegate() {
-  return new NewWindowDelegateImpl;
-}
-
 MediaDelegate* ShellDelegateImpl::CreateMediaDelegate() {
   return new MediaDelegateImpl;
 }