Always destruct url request context getter on io thread....

chrome/browser/gtk/options/cookies_view_unittest.cc

Index: chrome/browser/gtk/options/cookies_view_unittest.cc
===================================================================
--- chrome/browser/gtk/options/cookies_view_unittest.cc	(revision 32111)
+++ chrome/browser/gtk/options/cookies_view_unittest.cc	(working copy)
@@ -61,6 +61,12 @@
 
 class CookiesViewTest : public testing::Test {
  public:
+  CookiesViewTest() : io_thread_(ChromeThread::IO, &message_loop_) {
+  }
+
+  virtual ~CookiesViewTest() {
+  }
+
   virtual void SetUp() {
     profile_.reset(new CookieTestingProfile());
   }
@@ -153,7 +159,9 @@
   }
 
  protected:
-  MessageLoopForUI message_loop_;
+  MessageLoop message_loop_;
+  ChromeThread io_thread_;
+
   scoped_ptr<CookieTestingProfile> profile_;
 };