Switching VirtualKeyboardPrivate keyboard config call stack to receive HasInputDevices() responce a…

extensions/browser/api/virtual_keyboard_private/virtual_keyboard_private_api.cc

 // Copyright 2014 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 "extensions/browser/api/virtual_keyboard_private/virtual_keyboard_private_api.h"
 
 #include <memory>
 #include <utility>
 
+#include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/strings/string16.h"
 #include "extensions/browser/api/extensions_api_client.h"
 #include "extensions/browser/api/virtual_keyboard_private/virtual_keyboard_delegate.h"
 #include "extensions/browser/extension_function_registry.h"
 #include "extensions/common/api/virtual_keyboard_private.h"
 #include "ui/events/event.h"
 
 namespace extensions {
 
@@ skipping 76 matching lines @@
 
 ExtensionFunction::ResponseAction
 VirtualKeyboardPrivateKeyboardLoadedFunction::Run() {
   if (!delegate()->OnKeyboardLoaded())
     return RespondNow(Error(kUnknownError));
   return RespondNow(NoArguments());
 }
 
 ExtensionFunction::ResponseAction
 VirtualKeyboardPrivateGetKeyboardConfigFunction::Run() {
-  std::unique_ptr<base::DictionaryValue> results(new base::DictionaryValue());
-  if (!delegate()->GetKeyboardConfig(results.get()))
-    return RespondNow(Error(kUnknownError));
-  return RespondNow(OneArgument(std::move(results)));
+  delegate()->GetKeyboardConfig(base::Bind(
+      &VirtualKeyboardPrivateGetKeyboardConfigFunction::OnKeyboardConfig,
+      this));
+  return RespondLater();
+}
+
+void VirtualKeyboardPrivateGetKeyboardConfigFunction::OnKeyboardConfig(
+    std::unique_ptr<base::DictionaryValue> results) {
+  Respond(results ? OneArgument(std::move(results)) : Error(kUnknownError));
 }
 
 ExtensionFunction::ResponseAction
 VirtualKeyboardPrivateOpenSettingsFunction::Run() {
   if (!delegate()->IsLanguageSettingsEnabled() ||
       !delegate()->ShowLanguageSettings()) {
     return RespondNow(Error(kUnknownError));
   }
   return RespondNow(NoArguments());
 }
@@ skipping 27 matching lines @@
 static base::LazyInstance<BrowserContextKeyedAPIFactory<VirtualKeyboardAPI>>
     g_factory = LAZY_INSTANCE_INITIALIZER;
 
 // static
 BrowserContextKeyedAPIFactory<VirtualKeyboardAPI>*
 VirtualKeyboardAPI::GetFactoryInstance() {
   return g_factory.Pointer();
 }
 
 }  // namespace extensions