Added support for multiple parameters to Extension API callbacks.

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 "base/lazy_instance.h"
 #include "base/memory/scoped_vector.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 301 matching lines @@
 
   // The response is sent asynchronously in OnWebstoreParseSuccess/
   // OnWebstoreParseFailure.
   return true;
 }
 
 
 void BeginInstallWithManifestFunction::SetResult(ResultCode code) {
   switch (code) {
     case ERROR_NONE:
-      result_.reset(Value::CreateStringValue(""));
+      SetSingleResult(Value::CreateStringValue(""));
       break;
     case UNKNOWN_ERROR:
-      result_.reset(Value::CreateStringValue("unknown_error"));
+      SetSingleResult(Value::CreateStringValue("unknown_error"));
       break;
     case USER_CANCELLED:
-      result_.reset(Value::CreateStringValue("user_cancelled"));
+      SetSingleResult(Value::CreateStringValue("user_cancelled"));
       break;
     case MANIFEST_ERROR:
-      result_.reset(Value::CreateStringValue("manifest_error"));
+      SetSingleResult(Value::CreateStringValue("manifest_error"));
       break;
     case ICON_ERROR:
-      result_.reset(Value::CreateStringValue("icon_error"));
+      SetSingleResult(Value::CreateStringValue("icon_error"));
       break;
     case INVALID_ID:
-      result_.reset(Value::CreateStringValue("invalid_id"));
+      SetSingleResult(Value::CreateStringValue("invalid_id"));
       break;
     case PERMISSION_DENIED:
-      result_.reset(Value::CreateStringValue("permission_denied"));
+      SetSingleResult(Value::CreateStringValue("permission_denied"));
       break;
     case INVALID_ICON_URL:
-      result_.reset(Value::CreateStringValue("invalid_icon_url"));
+      SetSingleResult(Value::CreateStringValue("invalid_icon_url"));
       break;
     default:
       CHECK(false);
   }
 }
 
 void BeginInstallWithManifestFunction::OnWebstoreParseSuccess(
     const std::string& id,
     const SkBitmap& icon,
     DictionaryValue* parsed_manifest) {
@@ skipping 191 matching lines @@
     const std::string& id, const std::string& error) {
   CHECK_EQ(id_, id);
 
   error_ = error;
   SendResponse(false);
 
   Release();  // Matches the AddRef() in RunImpl().
 }
 
 bool GetBrowserLoginFunction::RunImpl() {
-  result_.reset(CreateLoginResult(profile_->GetOriginalProfile()));
+  SetSingleResult(CreateLoginResult(profile_->GetOriginalProfile()));
   return true;
 }
 
 bool GetStoreLoginFunction::RunImpl() {
   ExtensionService* service = profile_->GetExtensionService();
   ExtensionPrefs* prefs = service->extension_prefs();
   std::string login;
   if (prefs->GetWebStoreLogin(&login)) {
-    result_.reset(Value::CreateStringValue(login));
+    SetSingleResult(Value::CreateStringValue(login));
   } else {
-    result_.reset(Value::CreateStringValue(std::string()));
+    SetSingleResult(Value::CreateStringValue(std::string()));
   }
   return true;
 }
 
 bool SetStoreLoginFunction::RunImpl() {
   std::string login;
   EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &login));
   ExtensionService* service = profile_->GetExtensionService();
   ExtensionPrefs* prefs = service->extension_prefs();
   prefs->SetWebStoreLogin(login);
   return true;
 }
 
 GetWebGLStatusFunction::GetWebGLStatusFunction() {
   feature_checker_ = new GPUFeatureChecker(
       content::GPU_FEATURE_TYPE_WEBGL,
       base::Bind(&GetWebGLStatusFunction::OnFeatureCheck, this));
 }
 
 GetWebGLStatusFunction::~GetWebGLStatusFunction() {}
 
 void GetWebGLStatusFunction::CreateResult(bool webgl_allowed) {
-  result_.reset(Value::CreateStringValue(
+  SetSingleResult(Value::CreateStringValue(
       webgl_allowed ? "webgl_allowed" : "webgl_blocked"));
 }
 
 bool GetWebGLStatusFunction::RunImpl() {
   feature_checker_->CheckGPUFeatureAvailability();
   return true;
 }
 
 void GetWebGLStatusFunction::OnFeatureCheck(bool feature_allowed) {
   CreateResult(feature_allowed);
   SendResponse(true);
 }
 
 }  // namespace extensions