Get rid of the last RenderViewHostDelegate usage in chrome.

chrome/browser/ui/browser.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/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // OS_WIN
@@ skipping 5043 matching lines @@
         entry->GetURL(), Referrer(), disposition,
         content::PAGE_TRANSITION_RELOAD, false));
     return;
   }
 
   // As this is caused by a user action, give the focus to the page.
   //
   // Also notify RenderViewHostDelegate of the user gesture; this is
   // normally done in Browser::Navigate, but a reload bypasses Navigate.
   WebContents* tab = GetOrCloneTabForDisposition(disposition);
-  tab->GetRenderViewHost()->GetDelegate()->OnUserGesture();
+  tab->UserGestureDone();
   if (!tab->FocusLocationBarByDefault())
     tab->Focus();
   if (ignore_cache)
     tab->GetController().ReloadIgnoringCache(true);
   else
     tab->GetController().Reload(true);
 }
 
 WebContents* Browser::GetOrCloneTabForDisposition(
        WindowOpenDisposition disposition) {
@@ skipping 320 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }