Fix stale keyboard bounds on login screen

ash/wm/lock_window_state.cc

 // Copyright 2014 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/wm/lock_window_state.h"
 
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/wm/lock_layout_manager.h"
 #include "ash/wm/window_animations.h"
@@ skipping 149 matching lines @@
 }
 
 void LockWindowState::UpdateBounds(wm::WindowState* window_state) {
   if (!window_state->IsMaximized() && !window_state->IsFullscreen())
     return;
 
   keyboard::KeyboardController* keyboard_controller =
       keyboard::KeyboardController::GetInstance();
   gfx::Rect keyboard_bounds;
 
-  if (keyboard_controller && !keyboard::IsKeyboardOverscrollEnabled())
+  if (keyboard_controller &&
+      !keyboard::IsKeyboardOverscrollEnabled() &&
+      keyboard_controller->keyboard_visible()) {
     keyboard_bounds = keyboard_controller->current_keyboard_bounds();
+  }
 
   gfx::Rect bounds =
       ScreenUtil::GetDisplayBoundsInParent(window_state->window());
   bounds.set_height(bounds.height() - keyboard_bounds.height());
+
+  VLOG(1) << "Updating window bounds to: " << bounds.ToString();
   window_state->SetBoundsDirect(bounds);
 }
 
 }  // namespace ash