[Web Intents] Add ability to dispatch intents from extension-caused code (i.e. context menus)

chrome/browser/intents/web_intents_util.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/intents/web_intents_util.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 10 matching lines @@
 }
 
 bool IsWebIntentsEnabled(PrefService* prefs) {
   return prefs->GetBoolean(prefs::kWebIntentsEnabled);
 }
 
 bool IsWebIntentsEnabledForProfile(Profile* profile) {
   return IsWebIntentsEnabled(profile->GetPrefs());
 }
 
+Browser* GetWebIntentDeliveryBrowser(Profile* profile) {
+  Browser* browser = BrowserList::GetLastActive();
+  if (browser && profile && browser->profile() != profile)
+    return NULL;
+  return browser;
+}
+
 }  // namespace web_intents