[Input View] Makes the input view window support window.resizeTo() and w3c visibility API its web c…

ash/shell/keyboard_controller_proxy_stub.cc

 // 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.
 
 #include "ash/shell/keyboard_controller_proxy_stub.h"
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ui/aura/window.h"
 #include "ui/views/corewm/input_method_event_filter.h"
 
 using namespace content;
 
 namespace ash {
 
 KeyboardControllerProxyStub::KeyboardControllerProxyStub() {
 }
 
 KeyboardControllerProxyStub::~KeyboardControllerProxyStub() {
 }
 
 aura::Window* KeyboardControllerProxyStub::GetKeyboardWindow() {
-  aura::Window* window = new aura::Window(&delegate_);
-  window->Init(ui::LAYER_NOT_DRAWN);
-  return window;
+  if (!keyboard_) {
+    keyboard_.reset(new aura::Window(&delegate_));
+    keyboard_->Init(ui::LAYER_NOT_DRAWN);
+  }
+  return keyboard_.get();
 }
 
 BrowserContext* KeyboardControllerProxyStub::GetBrowserContext() {
   return Shell::GetInstance()->delegate()->GetCurrentBrowserContext();
 }
 
 ui::InputMethod* KeyboardControllerProxyStub::GetInputMethod() {
   return Shell::GetInstance()->input_method_filter()->input_method();
 }
 
 void KeyboardControllerProxyStub::RequestAudioInput(
     WebContents* web_contents,
     const MediaStreamRequest& request,
     const MediaResponseCallback& callback) {
 }
 
 }  // namespace ash