Limit display of the virtual keyboard to state changes triggered from a user gesture.

ash/root_window_controller.cc

 // 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.
 
 #include "ash/root_window_controller.h"
 
 #include <queue>
 #include <vector>
 
 #include "ash/ash_constants.h"
@@ skipping 599 matching lines @@
   // RootWindowLayoutManager. Remove this after fixed RootWindowLayoutManager.
   keyboard_container->SetBounds(parent->bounds());
 }
 
 void RootWindowController::DeactivateKeyboard(
     keyboard::KeyboardController* keyboard_controller) {
   if (!keyboard::IsKeyboardEnabled())
     return;
 
   DCHECK(keyboard_controller);
+  if (!keyboard_controller->keyboard_container_initialized())
+    return;
+
   aura::Window* keyboard_container =
       keyboard_controller->GetContainerWindow();
   if (keyboard_container->GetRootWindow() == root_window()) {
     root_window()->RemoveChild(keyboard_container);
     if (!keyboard::IsKeyboardUsabilityExperimentEnabled()) {
       keyboard_controller->RemoveObserver(shelf()->shelf_layout_manager());
       keyboard_controller->RemoveObserver(panel_layout_manager_);
       keyboard_controller->RemoveObserver(docked_layout_manager_);
     }
   }
@@ skipping 345 matching lines @@
     DisableTouchHudProjection();
 }
 
 RootWindowController* GetRootWindowController(
     const aura::Window* root_window) {
   return root_window ? GetRootWindowSettings(root_window)->controller : NULL;
 }
 
 }  // namespace internal
 }  // namespace ash