Delete most web intents code.

chrome/browser/extensions/web_intent_callbacks.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_WEB_INTENT_CALLBACKS_H_
-#define CHROME_BROWSER_EXTENSIONS_WEB_INTENT_CALLBACKS_H_
-
-#include "base/memory/singleton.h"
-#include "chrome/browser/profiles/profile_keyed_service.h"
-#include "chrome/browser/profiles/profile_keyed_service_factory.h"
-
-class Profile;
-
-namespace content {
-class WebContents;
-class WebIntentsDispatcher;
-}
-
-namespace extensions {
-class Extension;
-
-// The WebIntentCallbacks class tracks the pending callbacks for web intents
-// that have been delivered to packaged apps (i.e., new-style apps containing
-// shell windows), for a particular profile.
-class WebIntentCallbacks : public ProfileKeyedService {
- public:
-  WebIntentCallbacks();
-  virtual ~WebIntentCallbacks();
-
-  // Returns the instance for the given profile. This is a convenience wrapper
-  // around WebIntentCallbacks::Factory::GetForProfile.
-  static WebIntentCallbacks* Get(Profile* profile);
-
-  // Registers the callback for the Web Intent we're about to dispatch to the
-  // given extension. Returns an identifier that should later be dispatched to
-  // RetrieveCallback in order to invoke the callback registered here.
-  // This transfers ownership of WebIntentsDispatcher to this class.
-  int RegisterCallback(const Extension* extension,
-                       content::WebIntentsDispatcher* dispatcher,
-                       content::WebContents* source);
-
-  // Retrieves the callback for the given identifier, for a response from the
-  // specified extension. This will clear the callback. If there is no callback
-  // registered under this identifier, then this will return NULL. This
-  // transfers ownership of WebIntentsDispatcher to the caller.
-  content::WebIntentsDispatcher* RetrieveCallback(const Extension* extension,
-                                                  int intent_id);
-
- private:
-  typedef std::map<std::string, content::WebIntentsDispatcher*> CallbackMap;
-
-  class Factory : public ProfileKeyedServiceFactory {
-   public:
-    static WebIntentCallbacks* GetForProfile(Profile* profile);
-
-    static Factory* GetInstance();
-   private:
-    friend struct DefaultSingletonTraits<Factory>;
-
-    Factory();
-    virtual ~Factory();
-
-    // ProfileKeyedServiceFactory
-    virtual ProfileKeyedService* BuildServiceInstanceFor(
-        Profile* profile) const OVERRIDE;
-  };
-
-  // Private method to get and clear the dispatcher for the given string key.
-  // If there is no dispatcher available, this will return NULL. Otherwise, this
-  // transfers ownership of the WebIntentsDispatcher to the caller.
-  content::WebIntentsDispatcher* GetAndClear(const std::string& key);
-
-  class SourceObserver;
-
-  // Used as an incrementing ID for callback keys.
-  int last_id_;
-
-  // Stores all pending callbacks sent to platform apps.
-  CallbackMap pending_;
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_WEB_INTENT_CALLBACKS_H_