Split infobar_delegate.[cc,h] into separate pieces for the different classes defined within, so that

chrome/browser/ui/views/infobars/link_infobar.cc

 // Copyright (c) 2011 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/views/infobars/link_infobar.h"
 
-#include "chrome/browser/tab_contents/infobar_delegate.h"
+#include "chrome/browser/tab_contents/link_infobar_delegate.h"
 #include "chrome/browser/ui/views/event_utils.h"
 
 // LinkInfoBarDelegate --------------------------------------------------------
 
 InfoBar* LinkInfoBarDelegate::CreateInfoBar() {
   return new LinkInfoBar(this);
 }
 
 // LinkInfoBar ----------------------------------------------------------------
 
@@ skipping 54 matching lines @@
   DCHECK(link_ != NULL);
   DCHECK_EQ(link_, source);
   if (GetDelegate()->LinkClicked(
       event_utils::DispositionFromEventFlags(event_flags)))
     RemoveInfoBar();
 }
 
 LinkInfoBarDelegate* LinkInfoBar::GetDelegate() {
   return delegate()->AsLinkInfoBarDelegate();
 }