favor DCHECK_CURRENTLY_ON for better logs in chrome/browser/prerender/, prefetch and printing

chrome/browser/prerender/prerender_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 <deque>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 274 matching lines @@
     bool OnMessageReceived(const IPC::Message& message) override {
       return false;
     }
 
     ChannelDestructionWatcher* watcher_;
 
     DISALLOW_COPY_AND_ASSIGN(DestructionMessageFilter);
   };
 
   void OnChannelDestroyed() {
-    DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+    DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
     EXPECT_FALSE(channel_destroyed_);
     channel_destroyed_ = true;
     run_loop_.Quit();
   }
 
   bool channel_destroyed_;
   base::RunLoop run_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(ChannelDestructionWatcher);
@@ skipping 3747 matching lines @@
       browser()->tab_strip_model()->GetActiveWebContents();
   bool display_test_result = false;
   ASSERT_TRUE(content::ExecuteScriptAndExtractBool(web_contents,
                                                    "DidDisplayReallyPass()",
                                                    &display_test_result));
   ASSERT_TRUE(display_test_result);
 }
 #endif  // !defined(DISABLE_NACL)
 
 }  // namespace prerender