Fix VK animation related issues

ui/keyboard/keyboard_controller.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/keyboard/keyboard_controller.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "ui/aura/layout_manager.h"
 #include "ui/aura/window.h"
@@ skipping 261 matching lines @@
   if (was_showing != should_show) {
     if (should_show) {
       keyboard_visible_ = true;
 
       // If the controller is in the process of hiding the keyboard, do not log
       // the stat here since the keyboard will not actually be shown.
       if (!WillHideKeyboard())
         keyboard::LogKeyboardControlEvent(keyboard::KEYBOARD_CONTROL_SHOW);
 
       weak_factory_.InvalidateWeakPtrs();
-      if (container_->IsVisible())
+      // If |container_| has hide animation, its visibility is set to false when
+      // hide animation finished. So even if the container is visible at this
+      // point, it may in the process of hiding. We still need to show keyboard
+      // container in this case.
+      if (container_->IsVisible() &&
+          !container_->layer()->GetAnimator()->is_animating()) {
         return;
+      }
 
       NotifyKeyboardBoundsChanging(container_->children()[0]->bounds());
 
       proxy_->ShowKeyboardContainer(container_.get());
     } else {
       // Set the visibility state here so that any queries for visibility
       // before the timer fires returns the correct future value.
       keyboard_visible_ = false;
       base::MessageLoop::current()->PostDelayedTask(
           FROM_HERE,
@@ skipping 11 matching lines @@
     const ui::InputMethod* input_method) {
   DCHECK_EQ(input_method_, input_method);
   input_method_ = NULL;
 }
 
 bool KeyboardController::WillHideKeyboard() const {
   return weak_factory_.HasWeakPtrs();
 }
 
 }  // namespace keyboard