Web Intents: Hook up the register intent InfoBar with the WebIntentsRegistry.

chrome/browser/intents/web_intents_registry.h

 // Copyright (c) 2011 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_INTENTS_WEB_INTENTS_REGISTRY_H_
 #define CHROME_BROWSER_INTENTS_WEB_INTENTS_REGISTRY_H_
 #pragma once
 
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/intents/web_intent_data.h"
 #include "chrome/browser/webdata/web_data_service.h"
 
 // Handles storing and retrieving of web intents in the web database.
 // The registry provides filtering logic to retrieve specific types of intents.
-class WebIntentsRegistry : public WebDataServiceConsumer {
+class WebIntentsRegistry
+    : public WebDataServiceConsumer,
+      public base::RefCountedThreadSafe<WebIntentsRegistry> {
  public:
   // Unique identifier for intent queries.
   typedef int QueryID;
 
   // An interface the WebIntentsRegistry uses to notify its clients when
   // it has finished loading intents data from the web database.
   class Consumer {
    public:
     // Notifies the observer that the intents request has been completed.
     virtual void OnIntentsQueryDone(
         QueryID query_id,
         const std::vector<WebIntentData>& intents) = 0;
 
    protected:
     virtual ~Consumer() {}
   };
 
-  WebIntentsRegistry();
-  virtual ~WebIntentsRegistry();
-
   // Initializes, binds to a valid WebDataService.
   void Initialize(scoped_refptr<WebDataService> wds);
 
   // Registers a web intent provider.
-  void RegisterIntentProvider(const WebIntentData& intent);
+  virtual void RegisterIntentProvider(const WebIntentData& intent);
 
   // Removes a web intent provider from the registry.
   void UnregisterIntentProvider(const WebIntentData& intent);
 
   // Requests all intent providers matching |action|.
   // |consumer| must not be NULL.
   QueryID GetIntentProviders(const string16& action, Consumer* consumer);
 
+ protected:
+  // Make sure that only Profile can create an instance of WebIntentsRegistry.
+  friend class base::RefCountedThreadSafe<WebIntentsRegistry>;
+  friend class ProfileImpl;
+  friend class WebIntentsRegistryTest;
+
+  WebIntentsRegistry();
+  virtual ~WebIntentsRegistry();
+
  private:
    struct IntentsQuery;
 
   // Maps web data requests to intents queries.
-  // Allows OnWebDataServiceRequestDone to forward to appropiate consumer.
+  // Allows OnWebDataServiceRequestDone to forward to appropriate consumer.
   typedef base::hash_map<WebDataService::Handle, IntentsQuery*> QueryMap;
 
   // WebDataServiceConsumer implementation.
   virtual void OnWebDataServiceRequestDone(WebDataService::Handle h,
                                            const WDTypedResult* result);
 
   // Map for all in-flight web data requests/intent queries.
   QueryMap queries_;
 
   // Unique identifier for next intent query.
   QueryID next_query_id_;
 
   // Local reference to Web Data Service.
   scoped_refptr<WebDataService> wds_;
 
   DISALLOW_COPY_AND_ASSIGN(WebIntentsRegistry);
 };
 
 #endif  // CHROME_BROWSER_INTENTS_WEB_INTENTS_REGISTRY_H_