Poll CanPredictNetworkActions in Predictor class.

chrome/browser/chromeos/login/login_utils_browsertest.cc

 // Copyright (c) 2012 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/chromeos/login/login_utils.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 301 matching lines @@
     // chrome_browser_net::Predictor usually skips its shutdown routines on
     // unit_tests, but does the full thing when
     // g_browser_process->profile_manager() is valid during initialization.
     // That includes a WaitableEvent on UI waiting for a task on IO, so that
     // task must execute. Do it directly from here now.
     std::vector<Profile*> profiles =
         browser_process_->profile_manager()->GetLoadedProfiles();
     for (size_t i = 0; i < profiles.size(); ++i) {
       chrome_browser_net::Predictor* predictor =
           profiles[i]->GetNetworkPredictor();
-      if (predictor) {
-        predictor->EnablePredictorOnIOThread(false);
+      if (predictor)
         predictor->Shutdown();
-      }
     }
   }
 
   void RunUntilIdle() {
     loop_.RunUntilIdle();
     BrowserThread::GetBlockingPool()->FlushForTesting();
     loop_.RunUntilIdle();
   }
 
   // Invokes |task| on the IO loop and returns after it has executed.
@@ skipping 368 matching lines @@
 }
 
 INSTANTIATE_TEST_CASE_P(
     LoginUtilsBlockingLoginTestInstance,
     LoginUtilsBlockingLoginTest,
     testing::Values(0, 1, 2, 3, 4, 5));
 
 }  // namespace
 
 }  // namespace chromeos