Adding the Finch code for the certificate error reporter experiment

chrome/browser/ssl/ssl_blocking_page.h

 // 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.
 
 #ifndef CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_
 #define CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/strings/string16.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
 #include "chrome/browser/interstitials/security_interstitial_page.h"
 #include "net/ssl/ssl_info.h"
 #include "url/gurl.h"
 
+// Constants for the HTTPSErrorReporter Finch experiment
+extern const char kHTTPSErrorReporterFinchExperimentName[];
+extern const char kHTTPSErrorReporterFinchGroupShowPossiblySend[];
+extern const char kHTTPSErrorReporterFinchGroupDontShowDontSend[];
+extern const char kHTTPSErrorReporterFinchParamName[];
+
 #if defined(ENABLE_EXTENSIONS)
 namespace extensions {
 class ExperienceSamplingEvent;
 }
 #endif
 
 class SafeBrowsingUIManager;
 class SSLErrorClassification;
 
 // This class is responsible for showing/hiding the interstitial page that is
@@ skipping 105 matching lines @@
   // Which type of interstitial this is.
   enum SSLInterstitialReason {
     SSL_REASON_SSL,
     SSL_REASON_BAD_CLOCK
   } interstitial_reason_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLBlockingPage);
 };
 
 #endif  // CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_