macosx: minor appearance fixes

(cherry picked from commit dae3915c)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/gui/macosx/MainWindow.m

@@ -408,6 +408,7 @@ static VLCMainWindow *_o_sharedInstance = nil;
         winrect.size.height = winrect.size.height - f_titleBarHeight;
         [o_split_view setFrame: winrect];
         [o_video_view setFrame: winrect];
+        previousSavedFrame = winrect;
 
         [self display];
     }

modules/gui/macosx/MainWindowTitle.m

@@ -79,6 +79,9 @@
         [[VLCCoreInteraction sharedInstance] toggleFullscreen];
     else
         msg_Err( VLCIntf, "unknown button action sender" );
+
+    [self setWindowButtonOver: NO];
+    [self setWindowFullscreenButtonOver: NO];
 }
 
 - (void)setWindowTitle:(NSString *)title