favor DCHECK_CURRENTLY_ON for better logs in content/browser/[a-d]*

content/browser/cross_site_transfer_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 "base/command_line.h"
 #include "base/strings/stringprintf.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/resource_dispatcher_host_delegate.h"
 #include "content/public/browser/resource_throttle.h"
@@ skipping 192 matching lines @@
     if (should_wait_for_navigation)
       load_observer.Wait();
   }
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
     // Use --site-per-process to force process swaps for cross-site transfers.
     command_line->AppendSwitch(switches::kSitePerProcess);
   }
 
   void InjectResourceDisptcherHostDelegate() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
     old_delegate_ = ResourceDispatcherHostImpl::Get()->delegate();
     ResourceDispatcherHostImpl::Get()->SetDelegate(&tracking_delegate_);
   }
 
   void RestoreResourceDisptcherHostDelegate() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+    DCHECK_CURRENTLY_ON(BrowserThread::IO);
     ResourceDispatcherHostImpl::Get()->SetDelegate(old_delegate_);
     old_delegate_ = NULL;
   }
 
   TrackingResourceDispatcherHostDelegate& tracking_delegate() {
     return tracking_delegate_;
   }
 
  private:
   TrackingResourceDispatcherHostDelegate tracking_delegate_;
@@ skipping 211 matching lines @@
   EXPECT_EQ(0, controller.GetCurrentEntryIndex());
   EXPECT_EQ(url1, controller.GetEntryAtIndex(0)->GetURL());
 
   // Make sure the request for url2 did not complete.
   EXPECT_FALSE(tracking_delegate().WaitForTrackedURLAndGetCompleted());
 
   shell()->web_contents()->SetDelegate(old_delegate);
 }
 
 }  // namespace content