Remove special Unicorn feedback buckets.

chrome/browser/supervised_user/supervised_user_interstitial.cc

 // Copyright 2014 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/supervised_user/supervised_user_interstitial.h"
 
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 311 matching lines @@
   }
 
   if (command == "\"feedback\"") {
     base::string16 reason = l10n_util::GetStringUTF16(
         SupervisedUserURLFilter::GetBlockMessageID(reason_));
     std::string message = l10n_util::GetStringFUTF8(
         IDS_BLOCK_INTERSTITIAL_DEFAULT_FEEDBACK_TEXT, reason);
 #if defined(OS_ANDROID)
     ReportChildAccountFeedback(web_contents_, message, url_);
 #else
-    std::string bucket;
-#if defined(OS_CHROMEOS)
-    bucket = "UnicornCrOS";
-#else
-    bucket = "UnicornDesktop";
-#endif
-    chrome::ShowFeedbackPage(
-        chrome::FindBrowserWithWebContents(web_contents_),
-        message,
-        bucket);
+    chrome::ShowFeedbackPage(chrome::FindBrowserWithWebContents(web_contents_),
+                             message, std::string());
 #endif
     return;
   }
 
   NOTREACHED();
 }
 
 void SupervisedUserInterstitial::OnProceed() {
   DispatchContinueRequest(true);
 }
@@ skipping 42 matching lines @@
       SupervisedUserServiceFactory::GetForProfile(profile_);
   supervised_user_service->RemoveObserver(this);
 
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE, base::Bind(callback_, continue_request));
 
   // After this, the WebContents may be destroyed. Make sure we don't try to use
   // it again.
   web_contents_ = NULL;
 }