Implement virtual keyboard hiding.

ui/views/widget/native_widget_aura.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 "ui/views/widget/native_widget_aura.h"
 
 #include "base/bind.h"
 #include "base/strings/string_util.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/activation_client.h"
@@ skipping 764 matching lines @@
 }
 
 void NativeWidgetAura::OnMouseEvent(ui::MouseEvent* event) {
   DCHECK(window_->IsVisible());
   if (event->type() == ui::ET_MOUSEWHEEL) {
     delegate_->OnMouseEvent(event);
     if (event->handled())
       return;
   }
 
+  if (event->type() == ui::ET_MOUSE_RELEASED)
+    GetWidget()->GetInputMethod()->OnPossibleRefocus();

[SteveT, 2013/07/31 03:19:18]

Handling "refocus" here and below.

+
   if (tooltip_manager_.get())
     tooltip_manager_->UpdateTooltip();
   delegate_->OnMouseEvent(event);
 }
 
 void NativeWidgetAura::OnScrollEvent(ui::ScrollEvent* event) {
   delegate_->OnScrollEvent(event);
 }
 
 void NativeWidgetAura::OnTouchEvent(ui::TouchEvent* event) {
   DCHECK(window_->IsVisible());
+
+  if (event->type() == ui::ET_TOUCH_RELEASED)
+    GetWidget()->GetInputMethod()->OnPossibleRefocus();
+
   delegate_->OnTouchEvent(event);
 }
 
 void NativeWidgetAura::OnGestureEvent(ui::GestureEvent* event) {
   DCHECK(window_->IsVisible());
   delegate_->OnGestureEvent(event);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeWidgetAura, aura::client::ActivationDelegate implementation:
@@ skipping 263 matching lines @@
   return aura::Env::GetInstance()->is_mouse_button_down();
 }
 
 // static
 bool NativeWidgetPrivate::IsTouchDown() {
   return aura::Env::GetInstance()->is_touch_down();
 }
 
 }  // namespace internal
 }  // namespace views