Added support for multiple parameters to Extension API callbacks.

chrome/browser/extensions/extension_processes_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/extension_processes_api.h"
 
 #include "base/callback.h"
 #include "base/json/json_writer.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 550 matching lines @@
 }
 
 void GetProcessIdForTabFunction::GetProcessIdForTab() {
   TabContents* contents = NULL;
   int tab_index = -1;
   if (!ExtensionTabUtil::GetTabById(tab_id_, profile(), include_incognito(),
                                     NULL, NULL, &contents, &tab_index)) {
     error_ = ExtensionErrorUtils::FormatErrorMessage(
         extensions::tabs_constants::kTabNotFoundError,
         base::IntToString(tab_id_));
-    result_.reset(Value::CreateIntegerValue(-1));
+    SetResult(Value::CreateIntegerValue(-1));
     SendResponse(false);
   } else {
     int process_id = contents->web_contents()->GetRenderProcessHost()->GetID();
-    result_.reset(Value::CreateIntegerValue(process_id));
+    SetResult(Value::CreateIntegerValue(process_id));
     SendResponse(true);
   }
 
   // Balance the AddRef in the RunImpl.
   Release();
 }
 
 bool TerminateFunction::RunImpl() {
 #if defined(ENABLE_TASK_MANAGER)
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &process_id_));
@@ skipping 51 matching lines @@
         break;
       }
     }
   }
 
   if (!found) {
     error_ = ExtensionErrorUtils::FormatErrorMessage(errors::kProcessNotFound,
         base::IntToString(process_id_));
     SendResponse(false);
   } else {
-    result_.reset(Value::CreateBooleanValue(killed));
+    SetResult(Value::CreateBooleanValue(killed));
     SendResponse(true);
   }
 
   // Balance the AddRef in the RunImpl.
   Release();
 }
 
 GetProcessInfoFunction::GetProcessInfoFunction() {
 }
 
@@ skipping 79 matching lines @@
 
           process_ids_.erase(proc_id);
           if (process_ids_.size() == 0)
             break;
         }
       }
     }
     DCHECK(process_ids_.size() == 0);
   }
 
-  result_.reset(processes);
+  SetResult(processes);
   SendResponse(true);
 
   // Balance the AddRef in the RunImpl.
   Release();
 #endif  // defined(ENABLE_TASK_MANAGER)
 }