Implement large cursors in Mushrome.

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 67 matching lines @@
 }
 
 void ShellPortClassic::ShowCursor() {
   Shell::Get()->cursor_manager()->ShowCursor();
 }
 
 void ShellPortClassic::HideCursor() {
   Shell::Get()->cursor_manager()->HideCursor();
 }
 
+void ShellPortClassic::SetCursorSize(ui::CursorSize cursor_size) {
+  Shell::Get()->cursor_manager()->SetCursorSize(cursor_size);
+}
+
 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();
@@ skipping 99 matching lines @@
 std::unique_ptr<AcceleratorController>
 ShellPortClassic::CreateAcceleratorController() {
   DCHECK(!accelerator_controller_delegate_);
   accelerator_controller_delegate_ =
       base::MakeUnique<AcceleratorControllerDelegateAura>();
   return base::MakeUnique<AcceleratorController>(
       accelerator_controller_delegate_.get(), nullptr);
 }
 
 }  // namespace ash