Add a new resizer corner overlay.

chrome/browser/views/download_shelf_view.h

Index: chrome/browser/views/download_shelf_view.h
===================================================================
--- chrome/browser/views/download_shelf_view.h	(revision 9328)
+++ chrome/browser/views/download_shelf_view.h	(working copy)
@@ -31,7 +31,7 @@
                           public views::LinkController,
                           public AnimationDelegate {
  public:
-  DownloadShelfView(TabContents* tab_contents);
+  explicit DownloadShelfView(TabContents* tab_contents);
 
   // A new download has started, so add it to our shelf.
   void AddDownload(DownloadItem* download);
@@ -68,6 +68,12 @@
   // one.
   void ChangeTabContents(TabContents* old_contents, TabContents* new_contents);
 
+  // The browser view needs to know when we are going away to properly return
+  // the resize corner size to WebKit so that we don't draw on top of it.
+  // This returns the showing state of our animation which is set to false at
+  // the beginning Show and true at the beginning of a Hide.
+  bool IsShowing() const;
+
  private:
   void Init();
 
@@ -107,5 +113,5 @@
   DISALLOW_EVIL_CONSTRUCTORS(DownloadShelfView);
 };
 
-#endif // CHROME_BROWSER_VIEWS_DOWNLOAD_SHELF_VIEW_H__
+#endif  // CHROME_BROWSER_VIEWS_DOWNLOAD_SHELF_VIEW_H__