Implement main CertificateReportingService code and add unit tests.

chrome/browser/chrome_content_browser_client.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/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 652 matching lines @@
 // SSLErrorHandler. Uses the SafeBrowsing UI manager to send invalid
 // certificate reports.
 class SafeBrowsingSSLCertReporter : public SSLCertReporter {
  public:
   explicit SafeBrowsingSSLCertReporter(
       const scoped_refptr<safe_browsing::SafeBrowsingUIManager>&
           safe_browsing_ui_manager)
       : safe_browsing_ui_manager_(safe_browsing_ui_manager) {}
   ~SafeBrowsingSSLCertReporter() override {}
 
-  // SSLCertReporter implementation
+  // SSLCertReporter methods:
   void ReportInvalidCertificateChain(
       const std::string& serialized_report) override {
     if (safe_browsing_ui_manager_) {
       safe_browsing_ui_manager_->ReportInvalidCertificateChain(
           serialized_report, base::Bind(&base::DoNothing));
     }
   }
+  void OnDidNotSendReport() override {}
 
  private:
   const scoped_refptr<safe_browsing::SafeBrowsingUIManager>
       safe_browsing_ui_manager_;
 };
 
 #if BUILDFLAG(ANDROID_JAVA_UI)
 void HandleSingleTabModeBlockOnUIThread(const BlockedWindowParams& params) {
   WebContents* web_contents = tab_util::GetWebContentsByFrameID(
       params.render_process_id(), params.opener_render_frame_id());
@@ skipping 2608 matching lines @@
       render_frame_host, std::move(source), std::move(request));
 #else
   // Chrome's media remoting implementation depends on the Media Router
   // infrastructure to identify remote sinks and provide the user interface for
   // sink selection. In the case where the Media Router is not present, simply
   // drop the interface request. This will prevent code paths for media remoting
   // in the renderer process from activating.
 #endif
 }
 #endif  // BUILDFLAG(ENABLE_MEDIA_REMOTING)