[Web Intents] WebIntentsPickerController will now fetch icon for suggested extensions.

chrome/browser/ui/intents/web_intent_picker_controller.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_UI_INTENTS_WEB_INTENT_PICKER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_INTENTS_WEB_INTENT_PICKER_CONTROLLER_H_
 #pragma once
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/string16.h"
 #include "chrome/browser/favicon/favicon_service.h"
 #include "chrome/browser/intents/web_intents_registry.h"
 #include "chrome/browser/intents/cws_intents_registry.h"
 #include "chrome/browser/ui/intents/web_intent_picker_delegate.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "webkit/glue/web_intent_data.h"
 #include "webkit/glue/web_intent_reply_data.h"
 
 class Browser;
 class GURL;
-class TabContents;
 class TabContentsWrapper;
 class WebIntentPicker;
 class WebIntentPickerModel;
 
 namespace content {
 class WebContents;
 class WebIntentsDispatcher;
 }
 
-namespace gfx {
-class Image;
-}
-
 namespace webkit_glue {
 struct WebIntentServiceData;
 }
 
 // Controls the creation of the WebIntentPicker UI and forwards the user's
 // intent handler choice back to the TabContents object.
 class WebIntentPickerController : public content::NotificationObserver,
                                   public WebIntentPickerDelegate,
                                   public WebIntentsRegistry::Consumer {
  public:
@@ skipping 48 matching lines @@
       const std::vector<webkit_glue::WebIntentServiceData>& services) OVERRIDE;
 
   // Called when FaviconData is returned from the FaviconService.
   void OnFaviconDataAvailable(FaviconService::Handle handle,
                               history::FaviconData favicon_data);
 
   // Called when IntentExtensionInfo is returned from the CWSIntentsRegistry.
   void OnCWSIntentServicesAvailable(
       const CWSIntentsRegistry::IntentExtensionList& extensions);
 
+  // Called when a suggested extension's icon is fetched.
+  void OnExtensionIconURLFetchComplete(const string16& extension_id,
+                                       const content::URLFetcher* source);
+
+  typedef base::Callback<void(const gfx::Image&)>
+      ExtensionIconAvailableCallback;
+  // Called on a worker thread to decode and resize the extension's icon.
+  static void DecodeExtensionIconAndResize(
+      scoped_ptr<std::string> icon_response,
+      const ExtensionIconAvailableCallback& callback,
+      const base::Closure& unavailable_callback);
+
+  // Called when an extension's icon is successfully decoded and resized.
+  void OnExtensionIconAvailable(const string16& extension_id,
+                                const gfx::Image& icon_image);
+
+  // Called when an extension's icon failed to be decoded or resized.
+  void OnExtensionIconUnavailable(const string16& extension_id);
+
   // Decrements the |pending_async_count_| and notifies the picker if it
   // reaches zero.
   void AsyncOperationFinished();
 
   // Closes the currently active picker.
   void ClosePicker();
 
   // A weak pointer to the tab contents that the picker is displayed on.
   TabContentsWrapper* wrapper_;
 
@@ skipping 27 matching lines @@
 
   // Request consumer used when asynchronously loading favicons.
   CancelableRequestConsumerTSimple<size_t> favicon_consumer_;
 
   base::WeakPtrFactory<WebIntentPickerController> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebIntentPickerController);
 };
 
 #endif  // CHROME_BROWSER_UI_INTENTS_WEB_INTENT_PICKER_CONTROLLER_H_