Introduce runtime.onSuspendCanceled() event.

chrome/browser/extensions/extension_event_router.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_EVENT_ROUTER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_EVENT_ROUTER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 196 matching lines @@
   // Ensures that all lazy background pages that are interested in the given
   // event are loaded, and queues the event if the page is not ready yet.
   void DispatchLazyEvent(const std::string& extension_id,
                          const linked_ptr<ExtensionEvent>& event);
 
   // Dispatches the event to the specified extension running in |process|.
   void DispatchEventToProcess(const std::string& extension_id,
                               content::RenderProcessHost* process,
                               const linked_ptr<ExtensionEvent>& event);
 
+  // Prevents the given extension from being suspended.
+  void CancelSuspend(Profile* profile, const extensions::Extension* extension);
+
   // Returns false when the event is scoped to a profile and the listening
   // extension does not have access to events from that profile. Also fills
   // |event_args| with the proper arguments to send, which may differ if
   // the event crosses the incognito boundary.
   bool CanDispatchEventToProfile(
       Profile* profile,
       const extensions::Extension* extension,
       const linked_ptr<ExtensionEvent>& event,
       const base::Value** event_args);
 
@@ skipping 59 matching lines @@
                  const GURL& event_url,
                  Profile* restrict_to_profile,
                  ExtensionEventRouter::UserGestureState user_gesture,
                  const extensions::EventFilteringInfo& info);
 
   ~ExtensionEvent();
 };
 
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_EVENT_ROUTER_H_