Minor cleanup to how infobars handle expiry:

chrome/browser/chrome_quota_permission_context.cc

 // 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/chrome_quota_permission_context.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/utf_string_conversions.h"
@@ skipping 42 matching lines @@
         callback_(callback) {}
 
  private:
   virtual ~RequestQuotaInfoBarDelegate() {
     if (!callback_.is_null())
       context_->DispatchCallbackOnIOThread(
           callback_,
           QuotaPermissionContext::QUOTA_PERMISSION_RESPONSE_CANCELLED);
   }
 
-  virtual bool ShouldExpire(
+  virtual bool ShouldExpireInternal(
       const content::LoadCommittedDetails& details)
       const OVERRIDE {
     return false;
   }
 
   virtual string16 GetMessageText() const OVERRIDE;
   virtual bool Accept() OVERRIDE;
   virtual bool Cancel() OVERRIDE;
 
   scoped_refptr<ChromeQuotaPermissionContext> context_;
@@ skipping 90 matching lines @@
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ChromeQuotaPermissionContext::DispatchCallbackOnIOThread,
                    this, callback, response));
     return;
   }
 
   callback.Run(response);
 }
 
 ChromeQuotaPermissionContext::~ChromeQuotaPermissionContext() {}