Attempt to fix ash tests on Chrome OS valgrind

ui/wm/core/cursor_manager.cc

 // Copyright (c) 2013 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 "ui/wm/core/cursor_manager.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 69 matching lines @@
       cursor_lock_count_(0),
       current_state_(new internal::CursorState),
       state_on_unlock_(new internal::CursorState) {
   // Restore the last cursor visibility state.
   current_state_->SetVisible(last_cursor_visibility_state_);
 }
 
 CursorManager::~CursorManager() {
 }
 
+// static
+void CursorManager::ResetCursorVisibilityStateForTest() {
+  last_cursor_visibility_state_ = true;
+}
+
 void CursorManager::SetCursor(gfx::NativeCursor cursor) {
   state_on_unlock_->set_cursor(cursor);
   if (cursor_lock_count_ == 0 &&
       GetCursor() != state_on_unlock_->cursor()) {
     delegate_->SetCursor(state_on_unlock_->cursor(), this);
   }
 }
 
 gfx::NativeCursor CursorManager::GetCursor() const {
   return current_state_->cursor();
@@ skipping 117 matching lines @@
 
 void CursorManager::CommitCursorSet(ui::CursorSetType cursor_set) {
   current_state_->set_cursor_set(cursor_set);
 }
 
 void CursorManager::CommitMouseEventsEnabled(bool enabled) {
   current_state_->SetMouseEventsEnabled(enabled);
 }
 
 }  // namespace wm