Fixes the problem of the status bubble obscuring the download shelf....

chrome/browser/cocoa/status_bubble_mac.h

 // Copyright (c) 2009 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_COCOA_STATUS_BUBBLE_MAC_H_
 #define CHROME_BROWSER_COCOA_STATUS_BUBBLE_MAC_H_
 
 #include <string>
 
 #import <Cocoa/Cocoa.h>
 
 #include "chrome/browser/status_bubble.h"
 
 class GURL;
 class StatusBubbleMacTest;
 
 class StatusBubbleMac : public StatusBubble {
  public:
   StatusBubbleMac(NSWindow* parent);
   virtual ~StatusBubbleMac();
 
   // StatusBubble implementation.
   virtual void SetStatus(const std::wstring& status);
   virtual void SetURL(const GURL& url, const std::wstring& languages);
   virtual void Hide();
   virtual void MouseMoved();
+  virtual void UpdateDownloadShelfVisibility(bool visible);
 
  private:
   friend class StatusBubbleMacTest;
 
   void SetStatus(NSString* status, bool is_url);
 
   // Construct the window/widget if it does not already exist. (Safe to call if
   // it does.)
   void Create();
 
@@ skipping 10 matching lines @@
   NSString* status_text_;
 
   // The url we want to display when there is no status text to display.
   NSString* url_text_;
 
   // How vertically offset the bubble is from its root position.
   int offset_;
 };
 
 #endif  // #ifndef CHROME_BROWSER_COCOA_STATUS_BUBBLE_MAC_H_