make media gallery directory tooltips in media gallery config dialog absolute paths

chrome/browser/ui/cocoa/extensions/media_galleries_dialog_cocoa.mm

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/cocoa/extensions/media_galleries_dialog_cocoa.h"
 
 #include "base/sys_string_conversions.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ skipping 148 matching lines @@
     [new_checkbox setTarget:cocoa_controller_];
     [new_checkbox setAction:@selector(onCheckboxToggled:)];
 
     [checkbox_container_ addSubview:new_checkbox];
     [checkboxes_ addObject:new_checkbox];
     checkbox = new_checkbox.get();
   }
 
   [checkbox setTitle:base::SysUTF16ToNSString(gallery->display_name)];
   [checkbox setToolTip:
-      base::SysUTF16ToNSString(gallery->path.LossyDisplayName())];
+      base::SysUTF16ToNSString(gallery->AbsolutePath().LossyDisplayName())];
   [checkbox setState:permitted ? NSOnState : NSOffState];
 
   [checkbox sizeToFit];
   NSRect rect = [checkbox bounds];
   rect.origin.y = y_pos;
   rect.size.width = std::min(NSWidth(rect), kCheckboxMaxWidth);
   [checkbox setFrame:rect];
 }
 
 void MediaGalleriesDialogCocoa::UpdateCheckboxContainerFrame() {
@@ skipping 31 matching lines @@
 
 // static
 MediaGalleriesDialog* MediaGalleriesDialog::Create(
     MediaGalleriesDialogController* controller) {
   scoped_nsobject<MediaGalleriesCocoaController> cocoa_controller(
       [[MediaGalleriesCocoaController alloc] init]);
   return new MediaGalleriesDialogCocoa(controller, cocoa_controller);
 }
 
 }  // namespace chrome