[ChromeOS] Show autofill popup after keyboard (if any) is shown.

ui/base/ime/dummy_input_method.h

 // Copyright 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.
 
 #ifndef UI_BASE_IME_DUMMY_INPUT_METHOD_H_
 #define UI_BASE_IME_DUMMY_INPUT_METHOD_H_
 
 #include "ui/base/ime/input_method.h"
 
 namespace ui {
@@ skipping 21 matching lines @@
   void CancelComposition(const TextInputClient* client) override;
   void OnInputLocaleChanged() override;
   std::string GetInputLocale() override;
   bool IsActive() override;
   TextInputType GetTextInputType() const override;
   TextInputMode GetTextInputMode() const override;
   int GetTextInputFlags() const override;
   bool CanComposeInline() const override;
   bool IsCandidatePopupOpen() const override;
   void ShowImeIfNeeded() override;
+  void SetSupportsOnScreenKeyboard(bool supports) override;
+  bool SupportsOnScreenKeyboard() const override;
+  void OnKeyboardBoundsUnchanged() override;
 
   void AddObserver(InputMethodObserver* observer) override;
   void RemoveObserver(InputMethodObserver* observer) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DummyInputMethod);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_DUMMY_INPUT_METHOD_H_