Allow javascript change the virtual keyboard window size and position freely in FLOATING mode

ui/keyboard/keyboard_controller.h

 // 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.
 
 #ifndef UI_KEYBOARD_KEYBOARD_CONTROLLER_H_
 #define UI_KEYBOARD_KEYBOARD_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/event_types.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 74 matching lines @@
   void NotifyKeyboardBoundsChanging(const gfx::Rect& new_bounds);
 
   // Management of the observer list.
   virtual void AddObserver(KeyboardControllerObserver* observer);
   virtual void RemoveObserver(KeyboardControllerObserver* observer);
 
   KeyboardControllerProxy* proxy() { return proxy_.get(); }
 
   void set_lock_keyboard(bool lock) { lock_keyboard_ = lock; }
 
+  KeyboardMode keyboard_mode() const { return keyboard_mode_; }
+
   void SetKeyboardMode(KeyboardMode mode);
 
   // Force the keyboard to show up if not showing and lock the keyboard if
   // |lock| is true.
   void ShowKeyboard(bool lock);
 
   // Sets the active keyboard controller. KeyboardController takes ownership of
   // the instance. Calling ResetIntance with a new instance destroys the
   // previous one. May be called with NULL to clear the instance.
   static void ResetInstance(KeyboardController* controller);
@@ skipping 17 matching lines @@
 
   // Updates insets on web content window
   void UpdateWindowInsets(aura::Window* window);
 
  private:
   // For access to Observer methods for simulation.
   friend class KeyboardControllerTest;
 
   // aura::WindowObserver overrides
   void OnWindowHierarchyChanged(const HierarchyChangeParams& params) override;
+  void OnWindowAddedToRootWindow(aura::Window* window) override;
+  void OnWindowRemovingFromRootWindow(aura::Window* window,
+                                      aura::Window* new_root) override;
+  void OnWindowBoundsChanged(aura::Window* window,
+                             const gfx::Rect& old_bounds,
+                             const gfx::Rect& new_bounds) override;
 
   // InputMethodObserver overrides
   void OnTextInputTypeChanged(const ui::TextInputClient* client) override {}
   void OnFocus() override {}
   void OnBlur() override {}
   void OnCaretBoundsChanged(const ui::TextInputClient* client) override {}
   void OnTextInputStateChanged(const ui::TextInputClient* client) override;
   void OnInputMethodDestroyed(const ui::InputMethod* input_method) override;
   void OnShowImeIfNeeded() override;
 
@@ skipping 39 matching lines @@
   static KeyboardController* instance_;
 
   base::WeakPtrFactory<KeyboardController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardController);
 };
 
 }  // namespace keyboard
 
 #endif  // UI_KEYBOARD_KEYBOARD_CONTROLLER_H_