Ensure content settings aren't persisted in the guest profile

chrome/browser/download/download_request_limiter_unittest.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/download/download_request_limiter.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/run_loop.h"
 #include "build/build_config.h"
@@ skipping 94 matching lines @@
     download_request_limiter_ = new DownloadRequestLimiter();
 
 #if defined(OS_ANDROID)
     InfoBarService::CreateForWebContents(web_contents());
     fake_create_callback_ = base::Bind(
         &DownloadRequestLimiterTest::FakeCreate, base::Unretained(this));
     DownloadRequestInfoBarDelegateAndroid::SetCallbackForTesting(
         &fake_create_callback_);
 #endif
 
-    content_settings_ = new HostContentSettingsMap(profile_->GetPrefs(), false);
+    content_settings_ =
+        new HostContentSettingsMap(profile_->GetPrefs(), false, false);

[msramek, 2016/01/20 11:01:46]

nit: please annotate the callsites as

"false /* incognito */, false /* guest */"

[raymes, 2016/01/20 22:55:42]

Done.

     DownloadRequestLimiter::SetContentSettingsForTesting(
         content_settings_.get());
   }
 
   int GetAction() {
     return testing_action_;
   }
 
   void AskAllow() {
     ask_allow_count_++;
@@ skipping 375 matching lines @@
   CanDownload();
   ExpectAndResetCounts(0, 1, 0, __LINE__);
   ASSERT_EQ(DownloadRequestLimiter::PROMPT_BEFORE_DOWNLOAD,
             download_request_limiter_->GetDownloadStatus(web_contents()));
 
   CanDownload();
   ExpectAndResetCounts(0, 1, 0, __LINE__);
   ASSERT_EQ(DownloadRequestLimiter::PROMPT_BEFORE_DOWNLOAD,
             download_request_limiter_->GetDownloadStatus(web_contents()));
 }