Implemented drop hander for the Home toolbar button that accepts (only) links

chrome/browser/ui/views/home_button.h

Index: chrome/browser/ui/views/home_button.h
===================================================================
--- chrome/browser/ui/views/home_button.h	(revision 0)
+++ chrome/browser/ui/views/home_button.h	(revision 0)
@@ -0,0 +1,32 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.

[tfarina, 2013/01/28 02:37:11]

nit: new files are Copyright 2013.
see crbug.com/140977

[Tom Cassiotis, 2013/01/28 15:34:33]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_UI_VIEWS_HOME_BUTTON_H__

[tfarina, 2013/01/28 02:37:11]

nit: CHROME_BROWSER_UI_VIEWS_HOME_BUTTON_H_

[Tom Cassiotis, 2013/01/28 15:34:33]

Done.

+#define CHROME_BROWSER_UI_VIEWS_HOME_BUTTON_H__
+
+#include <set>

[tfarina, 2013/01/28 02:37:11]

no need to include that. it's part of image_button.h interface.

[Tom Cassiotis, 2013/01/28 15:34:33]

This was specifically added to address the automated warning "Include what you
use".

+
+#include "ui/views/controls/button/image_button.h"
+
+class Browser;
+
+class HomeImageButton : public views::ImageButton {
+ public:
+  HomeImageButton(views::ButtonListener* listener, Browser* browser);
+  virtual ~HomeImageButton();
+
+  virtual bool GetDropFormats(

[tfarina, 2013/01/28 02:37:11]

// views::ImageButton:

as Peter prefers ;)

[Tom Cassiotis, 2013/01/28 15:34:33]

Done.

+      int* formats,
+      std::set<OSExchangeData::CustomFormat>* custom_formats) OVERRIDE;
+  virtual bool CanDrop(const OSExchangeData& data) OVERRIDE;
+  virtual int OnDragUpdated(const ui::DropTargetEvent& event) OVERRIDE;
+  virtual int OnPerformDrop(const ui::DropTargetEvent& event) OVERRIDE;
+
+ private:
+  Browser* browser_;
+
+  DISALLOW_COPY_AND_ASSIGN(HomeImageButton);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_HOME_BUTTON_H__