[Android] Show autofill popup after animation.

ui/base/ime/input_method.h

 // Copyright (c) 2012 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_INPUT_METHOD_H_
 #define UI_BASE_IME_INPUT_METHOD_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 143 matching lines @@
   virtual bool CanComposeInline() const = 0;
 
   // Returns true if we know for sure that a candidate window (or IME suggest,
   // etc.) is open.  Returns false if no popup window is open or the detection
   // of IME popups is not supported.
   virtual bool IsCandidatePopupOpen() const = 0;
 
   // Displays an on screen keyboard if enabled.
   virtual void ShowImeIfNeeded() = 0;
 
+  // Sets whether the on screen keyboard is enabled and supported by the
+  // platform.
+  virtual void SetSupportsOnScreenKeyboard(bool supported) = 0;

[yukawa, 2014/12/24 03:09:49]

I'm still unsure why we need setter for this property.  Why is this mutable?

+
+  // Returns true if on screen keyboard is enabled and supported by the
+  // platform.
+  virtual bool SupportsOnScreenKeyboard() const = 0;

[yukawa, 2014/12/24 03:09:49]

Related to the above comment, if the return value of this method may change at
run-time, maybe we may want to clarify with method name and/or comments.

+
   // Management of the observer list.
   virtual void AddObserver(InputMethodObserver* observer) = 0;
   virtual void RemoveObserver(InputMethodObserver* observer) = 0;
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_IME_INPUT_METHOD_H_