gtk: Hide the status bubble when the mouse nears it.

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>
@@ skipping 18 matching lines @@
     kBubbleHidingFadeOut   // In a fade-out transition
   };
 
   StatusBubbleMac(NSWindow* parent, id delegate);
   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 MouseMoved(const gfx::Point& location, bool left_content);
   virtual void UpdateDownloadShelfVisibility(bool visible);
 
   // Mac-specific method: Update the size and position of the status bubble to
   // match the parent window. Safe to call even when the status bubble does not
   // exist.
   void UpdateSizeAndPosition();
 
   // Delegate method called when a fade-in or fade-out transition has
   // completed.  This is public so that it may be visible to the CAAnimation
   // delegate, which is an Objective-C object.
@@ skipping 76 matching lines @@
 @interface NSObject(StatusBubbleDelegate)
 // Called to query the delegate about the vertical offset (if any) that should
 // be applied to the StatusBubble's position.
 - (float)verticalOffsetForStatusBubble;
 
 // Called from SetState to notify the delegate of state changes.
 - (void)statusBubbleWillEnterState:(StatusBubbleMac::StatusBubbleState)state;
 @end
 
 #endif  // #ifndef CHROME_BROWSER_COCOA_STATUS_BUBBLE_MAC_H_