Infobars on GTK (first part)....

chrome/browser/gtk/extension_infobar_gtk.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_GTK_EXTENSION_INFOBAR_GTK_H_
+#define CHROME_BROWSER_GTK_EXTENSION_INFOBAR_GTK_H_
+
+#include <gtk/gtk.h>
+
+#include "chrome/browser/gtk/infobar_gtk.h"
+#include "chrome/browser/extensions/extension_infobar_delegate.h"
+#include "chrome/browser/extensions/image_loading_tracker.h"
+#include "gfx/gtk_util.h"
+
+class ExtensionInfobarDelegate;
+class ExtensionResource;
+class ExtensionViewGtk;
+
+class ExtensionInfoBarGtk : public InfoBar,
+                            public ImageLoadingTracker::Observer {
+ public:
+  explicit ExtensionInfoBarGtk(ExtensionInfoBarDelegate* delegate);
+  virtual ~ExtensionInfoBarGtk();
+
+  // Overridden from ImageLoadingTracker::Observer:
+  virtual void OnImageLoaded(
+      SkBitmap* image, ExtensionResource resource, int index);
+
+ private:
+  // Build the widgets of the Infobar.
+  void BuildWidgets();
+
+  CHROMEGTK_CALLBACK_1(ExtensionInfoBarGtk, void, OnSizeAllocate,
+                       GtkAllocation*);
+
+  ImageLoadingTracker tracker_;
+
+  ExtensionInfoBarDelegate* delegate_;
+
+  ExtensionViewGtk* view_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionInfoBarGtk);
+};
+
+#endif  // CHROME_BROWSER_GTK_EXTENSION_INFOBAR_GTK_H_