Remove more unnecessary ChromeURLRequestContext members.

chrome/browser/profiles/off_the_record_profile_io_data.cc

Index: chrome/browser/profiles/off_the_record_profile_io_data.cc
diff --git a/chrome/browser/profiles/off_the_record_profile_io_data.cc b/chrome/browser/profiles/off_the_record_profile_io_data.cc
index 476c41f253f8718b381e470e8113f5ca4afdc0f6..cd12dd36f2f7abcd8e35613230b274ca2bdbfdfd 100644
--- a/chrome/browser/profiles/off_the_record_profile_io_data.cc
+++ b/chrome/browser/profiles/off_the_record_profile_io_data.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/profiles/off_the_record_profile_io_data.h"
 
+#include "base/bind.h"
 #include "base/logging.h"
 #include "base/stl_util-inl.h"
 #include "build/build_config.h"
@@ -43,7 +44,17 @@ OffTheRecordProfileIOData::Handle::~Handle() {
     iter->second->CleanupOnUIThread();
   }
 
-  io_data_->ShutdownOnUIThread();
+  io_data_->AddRef();
+  io_data_.release()->ShutdownOnUIThread();
+}
+
+base::Callback<ChromeURLDataManagerBackend*(void)>
+OffTheRecordProfileIOData::Handle::
+GetChromeURLDataManagerBackendGetter() const {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  LazyInitialize();
+  return base::Bind(&ProfileIOData::GetChromeURLDataManagerBackend,
+                    base::Unretained(io_data_.get()));
 }
 
 const content::ResourceContext&