Ensure that the OSK on Windows 8 shows up when we tap on an editable field in any WebContents.

chrome/browser/extensions/api/app_window/app_window_api.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 "chrome/browser/extensions/api/app_window/app_window_api.h"
 
 #include "apps/app_window_contents.h"
 #include "apps/shell_window.h"
 #include "apps/shell_window_registry.h"
 #include "apps/ui/native_app_window.h"
@@ skipping 18 matching lines @@
 #include "ui/base/ui_base_types.h"
 #include "ui/gfx/rect.h"
 #include "url/gurl.h"
 
 #if defined(USE_ASH)
 #include "ash/shell.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/window.h"
 #endif
 
+#if defined(OS_WIN)
+#include "chrome/browser/ui/touch_web_contents_observer_win.h"
+#endif
+
 using apps::ShellWindow;
 
 namespace app_window = extensions::api::app_window;
 namespace Create = app_window::Create;
 
 namespace extensions {
 
 namespace app_window_constants {
 const char kInvalidWindowId[] =
     "The window id can not be more than 256 characters long.";
@@ skipping 278 matching lines @@
     view_id = created_view->GetRoutingID();
 
   base::DictionaryValue* result = new base::DictionaryValue;
   result->Set("viewId", new base::FundamentalValue(view_id));
   result->Set("injectTitlebar",
       new base::FundamentalValue(inject_html_titlebar));
   result->Set("id", new base::StringValue(shell_window->window_key()));
   SetCreateResultFromShellWindow(shell_window, result);
   SetResult(result);
 
+#if defined(OS_WIN)
+  TouchWebContentsObserver::CreateForWebContents(shell_window->web_contents());
+#endif
+
   if (apps::ShellWindowRegistry::Get(GetProfile())
           ->HadDevToolsAttached(created_view)) {
     new DevToolsRestorer(this, created_view);
     return true;
   }
 
   SendResponse(true);
   return true;
 }
 
 }  // namespace extensions