Clean up async app launcher enabled checks.

chrome/browser/extensions/api/webstore_private/webstore_private_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/webstore_private/webstore_private_api.h"
 
 #include "apps/app_launcher.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 494 matching lines @@
   } else {
     AfterMaybeInstallAppLauncher(true);
   }
 
   return true;
 }
 
 void CompleteInstallFunction::AfterMaybeInstallAppLauncher(bool ok) {
   if (!ok)
     LOG(ERROR) << "Error installing app launcher";
-  apps::GetIsAppLauncherEnabled(base::Bind(
-      &CompleteInstallFunction::OnGetAppLauncherEnabled, this,
-      approval_->extension_id));
-}
-
-void CompleteInstallFunction::OnGetAppLauncherEnabled(
-    std::string id,
-    bool app_launcher_enabled) {
-  if (app_launcher_enabled) {
+  std::string id = approval_->extension_id;
+  if (apps::IsAppLauncherEnabled()) {
     std::string name;
     if (!approval_->manifest->value()->GetString(extension_manifest_keys::kName,
                                                  &name)) {
       NOTREACHED();
     }
     // Show the app list so it receives install progress notifications.
     if (approval_->manifest->is_app())
       AppListService::Get()->ShowAppList(profile());
 
     extensions::InstallTracker* tracker =
@@ skipping 103 matching lines @@
   feature_checker_->CheckGPUFeatureAvailability();
   return true;
 }
 
 void GetWebGLStatusFunction::OnFeatureCheck(bool feature_allowed) {
   CreateResult(feature_allowed);
   SendResponse(true);
 }
 
 bool GetIsLauncherEnabledFunction::RunImpl() {
-  apps::GetIsAppLauncherEnabled(base::Bind(
-      &GetIsLauncherEnabledFunction::OnIsLauncherCheckCompleted, this));
+  SetResult(Value::CreateBooleanValue(apps::IsAppLauncherEnabled()));
+  SendResponse(true);
   return true;
 }
 
-void GetIsLauncherEnabledFunction::OnIsLauncherCheckCompleted(bool is_enabled) {
-  SetResult(Value::CreateBooleanValue(is_enabled));
-  SendResponse(true);
-}
-
 }  // namespace extensions