Add {Lock,Unlock,Show,Hide}Cursor() to the window manager mojom.

ash/aura/shell_port_classic.cc

 // Copyright 2016 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 "ash/aura/shell_port_classic.h"
 
 #include <utility>
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/accelerators/accelerator_controller_delegate_aura.h"
@@ skipping 110 matching lines @@
 }
 
 void ShellPortClassic::LockCursor() {
   Shell::Get()->cursor_manager()->LockCursor();
 }
 
 void ShellPortClassic::UnlockCursor() {
   Shell::Get()->cursor_manager()->UnlockCursor();
 }
 
+void ShellPortClassic::ShowCursor() {
+  Shell::Get()->cursor_manager()->ShowCursor();
+}
+
+void ShellPortClassic::HideCursor() {
+  Shell::Get()->cursor_manager()->HideCursor();
+}
+
+void ShellPortClassic::SetGlobalOverrideCursor(
+    base::Optional<ui::CursorData> cursor) {
+  // This is part of a fat interface that is only implemented on the mash side;
+  // there isn't an equivalent operation in ::wm::CursorManager. We also can't
+  // just call into ShellPortMash because of library linking issues.
+  NOTREACHED();
+}
+
 bool ShellPortClassic::IsMouseEventsEnabled() {
   return Shell::Get()->cursor_manager()->IsMouseEventsEnabled();
 }
 
 std::vector<WmWindow*> ShellPortClassic::GetAllRootWindows() {
   aura::Window::Windows root_windows =
       Shell::Get()->window_tree_host_manager()->GetAllRootWindows();
   std::vector<WmWindow*> wm_windows(root_windows.size());
   for (size_t i = 0; i < root_windows.size(); ++i)
     wm_windows[i] = WmWindow::Get(root_windows[i]);
@@ skipping 144 matching lines @@
   for (auto& observer : display_observers_)
     observer.OnDisplayConfigurationChanging();
 }
 
 void ShellPortClassic::OnDisplayConfigurationChanged() {
   for (auto& observer : display_observers_)
     observer.OnDisplayConfigurationChanged();
 }
 
 }  // namespace ash