Added support for multiple parameters to Extension API callbacks.

chrome/browser/extensions/extension_idle_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_idle_api.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 137 matching lines @@
       keys::kOnStateChanged, json_args, profile, GURL(), EventFilteringInfo());
 }
 
 bool ExtensionIdleQueryStateFunction::RunImpl() {
   int threshold;
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &threshold));
   threshold = CheckThresholdBounds(threshold);
 
   IdleState state = ExtensionIdleCache::CalculateIdleState(threshold);
   if (state != IDLE_STATE_UNKNOWN) {
-    result_.reset(CreateIdleValue(state));
+    SetResult(CreateIdleValue(state));
     SendResponse(true);
     return true;
   }
 
   CalculateIdleState(threshold,
       base::Bind(&ExtensionIdleQueryStateFunction::IdleStateCallback,
                  this, threshold));
   // Don't send the response, it'll be sent by our callback
   return true;
 }
 
 void ExtensionIdleQueryStateFunction::IdleStateCallback(int threshold,
                                                         IdleState state) {
   // If our state is not active, make sure we're running a polling task to check
   // for active state and report it when it changes to active.
   if (state != IDLE_STATE_ACTIVE) {
     ExtensionIdlePollingTask::CreateNewPollTask(threshold, state, profile_);
   }
 
-  result_.reset(CreateIdleValue(state));
+  SetResult(CreateIdleValue(state));
 
   ExtensionIdleCache::UpdateCache(threshold, state);
 
   SendResponse(true);
 }
 
 ExtensionIdleCache::CacheData ExtensionIdleCache::cached_data =
     {-1, -1, -1, -1};
 
 IdleState ExtensionIdleCache::CalculateIdleState(int threshold) {
@@ skipping 73 matching lines @@
   }
 }
 
 int ExtensionIdleCache::get_min_threshold() {
   return kMinThreshold;
 }
 
 double ExtensionIdleCache::get_throttle_interval() {
   return static_cast<double>(kThrottleInterval);
 }