Remove more unnecessary ChromeURLRequestContext members.

chrome/browser/profiles/profile_impl_io_data.cc

Index: chrome/browser/profiles/profile_impl_io_data.cc
diff --git a/chrome/browser/profiles/profile_impl_io_data.cc b/chrome/browser/profiles/profile_impl_io_data.cc
index d9a694a6546ce01e7dfc22689e4bcefcccd2de4d..34bbe9a3a2991eb8d99853d6d097e53e50b110d4 100644
--- a/chrome/browser/profiles/profile_impl_io_data.cc
+++ b/chrome/browser/profiles/profile_impl_io_data.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/profiles/profile_impl_io_data.h"
 
+#include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
@@ -46,7 +47,8 @@ ProfileImplIOData::Handle::~Handle() {
     iter->second->CleanupOnUIThread();
   }
 
-  io_data_->ShutdownOnUIThread();
+  io_data_->AddRef();
+  io_data_.release()->ShutdownOnUIThread();
 }
 
 void ProfileImplIOData::Handle::Init(const FilePath& cookie_path,
@@ -73,6 +75,14 @@ void ProfileImplIOData::Handle::Init(const FilePath& cookie_path,
   io_data_->app_path_ = app_path;
 }
 
+base::Callback<ChromeURLDataManagerBackend*(void)>
+ProfileImplIOData::Handle::GetChromeURLDataManagerBackendGetter() const {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  LazyInitialize();
+  return base::Bind(&ProfileIOData::GetChromeURLDataManagerBackend,
+                    base::Unretained(io_data_.get()));
+}
+
 const content::ResourceContext&
 ProfileImplIOData::Handle::GetResourceContext() const {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));