Fix broken unit-test.

BUG=
TEST=

Review URL: http://codereview.chromium.org/8595011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110707 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/safe_browsing/download_protection_service_unittest.cc

@@ -661,8 +661,6 @@ TEST_F(DownloadProtectionServiceTest, TestDownloadRequestTimeout) {
       info,
       base::Bind(&DownloadProtectionServiceTest::CheckDoneCallback,
                  base::Unretained(this)));
-  // Run the message loop(s) until SendRequest is called.
-  FlushThreadMessageLoops();
 
   // The request should time out because the HTTP request hasn't returned
   // anything yet.