Introduce new async IPC message to get file icons

chrome/browser/renderer_host/render_view_host.h

 // Copyright (c) 2010 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_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 
 #include <string>
 #include <vector>
 
 #include "base/scoped_ptr.h"
+#include "chrome/browser/cancelable_request.h"
 #include "chrome/browser/find_bar_controller.h"
+#include "chrome/browser/icon_manager.h"
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #include "chrome/common/content_settings_types.h"
 #include "chrome/common/page_zoom.h"
 #include "chrome/common/translate_errors.h"
 #include "chrome/common/view_types.h"
 #include "chrome/common/window_container_type.h"
 #include "net/base/load_states.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebConsoleMessage.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDragOperation.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebPopupType.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebTextDirection.h"
 #include "webkit/glue/password_form_dom_manager.h"
 #include "webkit/glue/window_open_disposition.h"
 
 class FilePath;
+class IconRequestProvider;
 class ListValue;
 class RenderViewHostDelegate;
 class SiteInstance;
 class SkBitmap;
 class ViewMsg_Navigate;
 struct ContentSettings;
 struct ContextMenuParams;
 struct MediaPlayerAction;
 struct ThumbnailScore;
 struct ViewHostMsg_DidPrintPage_Params;
@@ skipping 313 matching lines @@
   // contain all saved auxiliary files included all sub frames and resouces.
   void GetSerializedHtmlDataForCurrentPageWithLocalLinks(
       const std::vector<GURL>& links,
       const std::vector<FilePath>& local_paths,
       const FilePath& local_directory_name);
 
   // Notifies the Listener that one or more files have been chosen by the user
   // from an Open File dialog for the form.
   void FilesSelectedInChooser(const std::vector<FilePath>& files);
 
+  // The type for icon loading.
+  typedef CancelableRequestConsumerT<int, 0> CancelableConsumer;
+  void OnIconLoaded(int request_id, SkBitmap* icon);
+
   // Notifies the RenderViewHost that its load state changed.
   void LoadStateChanged(const GURL& url, net::LoadState load_state,
                         uint64 upload_position, uint64 upload_size);
 
   bool SuddenTerminationAllowed() const;
   void set_sudden_termination_allowed(bool enabled) {
     sudden_termination_allowed_ = enabled;
   }
 
   // Forward a message from external host to chrome renderer.
@@ skipping 165 matching lines @@
   void OnMsgForwardMessageToExternalHost(const std::string& message,
                                          const std::string& origin,
                                          const std::string& target);
   void OnMsgDocumentLoadedInFrame();
   void OnMsgGoToEntryAtOffset(int offset);
   void OnMsgSetTooltipText(const std::wstring& tooltip_text,
                            WebKit::WebTextDirection text_direction_hint);
   void OnMsgSelectionChanged(const std::string& text);
   void OnMsgPasteFromSelectionClipboard();
   void OnMsgRunFileChooser(const ViewHostMsg_RunFileChooser_Params& params);
+  void OnMsgChooseIconForFiles(int request_id,
+                               const std::vector<FilePath>& filenames);
   void OnMsgRunJavaScriptMessage(const std::wstring& message,
                                  const std::wstring& default_prompt,
                                  const GURL& frame_url,
                                  const int flags,
                                  IPC::Message* reply_msg);
   void OnMsgRunBeforeUnloadConfirm(const GURL& frame_url,
                                    const std::wstring& message,
                                    IPC::Message* reply_msg);
   void OnMsgShowModalHTMLDialog(const GURL& url, int width, int height,
                                 const std::string& json_arguments,
@@ skipping 140 matching lines @@
   bool unload_ack_is_for_cross_site_transition_;
 
   bool are_javascript_messages_suppressed_;
 
   // True if the render view can be shut down suddenly.
   bool sudden_termination_allowed_;
 
   // The session storage namespace id to be used by the associated render view.
   int64 session_storage_namespace_id_;
 
+  // For icon loading by OnMsgChooseIconForFiles().
+  CancelableConsumer cancelable_consumer_;
+  scoped_ptr<IconRequestProvider> icon_request_provider_;
+
   // Whether this render view will be used for extensions. This controls
   // what process type we use.
   bool is_extension_process_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_