Use ImageLoader instead of ImageLoadingTracker (Part 9)

chrome/browser/ui/panels/panel.h

Index: chrome/browser/ui/panels/panel.h
diff --git a/chrome/browser/ui/panels/panel.h b/chrome/browser/ui/panels/panel.h
index 70c9c39c3a5eda87a5ef4c904b9021b8579937b4..2cb7e7b724993172d3a2883049f3b4d4e779424c 100644
--- a/chrome/browser/ui/panels/panel.h
+++ b/chrome/browser/ui/panels/panel.h
@@ -9,10 +9,10 @@
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "base/string16.h"
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/command_updater_delegate.h"
-#include "chrome/browser/extensions/image_loading_tracker.h"
 #include "chrome/browser/sessions/session_id.h"
 #include "chrome/browser/ui/base_window.h"
 #include "chrome/browser/ui/panels/panel_constants.h"
@@ -49,8 +49,7 @@ class WindowController;
 //   other Panels. For example deleting a panel would rearrange other panels.
 class Panel : public BaseWindow,
               public CommandUpdaterDelegate,
-              public content::NotificationObserver,
-              public ImageLoadingTracker::Observer {
+              public content::NotificationObserver {
  public:
   enum ExpansionState {
     // The panel is fully expanded with both title-bar and the client-area.
@@ -314,10 +313,7 @@ class Panel : public BaseWindow,
     CUSTOM_MAX_SIZE
   };
 
-  // ImageLoadingTracker::Observer implementation.
-  virtual void OnImageLoaded(const gfx::Image& image,
-                             const std::string& extension_id,
-                             int index) OVERRIDE;
+  void OnImageLoaded(const gfx::Image& image);
 
   // Initialize state for all supported commands.
   void InitCommandState();
@@ -384,12 +380,11 @@ class Panel : public BaseWindow,
   scoped_ptr<extensions::WindowController> extension_window_controller_;
   scoped_ptr<PanelHost> panel_host_;
 
-  // Used for loading app_icon_.
-  scoped_ptr<ImageLoadingTracker> app_icon_loader_;
-
   // Icon showed in the task bar.
   gfx::Image app_icon_;
 
+  base::WeakPtrFactory<Panel> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(Panel);
 };