[New Tab Page] Change the mechanism to intercept online NTP errors

net/test/url_request/url_request_mock_http_job.h

Index: net/test/url_request/url_request_mock_http_job.h
diff --git a/net/test/url_request/url_request_mock_http_job.h b/net/test/url_request/url_request_mock_http_job.h
index 6eb3c72b86199aeeba02342344b0fbf39f8c1f50..6e454f410e02c82047e70a51aec861856050f8f4 100644
--- a/net/test/url_request/url_request_mock_http_job.h
+++ b/net/test/url_request/url_request_mock_http_job.h
@@ -49,8 +49,8 @@ class URLRequestMockHTTPJob : public URLRequestFileJob {
   void GetResponseInfo(HttpResponseInfo* info) override;
   bool IsRedirectResponse(GURL* location, int* http_status_code) override;
 
-  // Adds the testing URLs to the URLRequestFilter.
-  static void AddUrlHandler(
+  // Adds the testing URLs to the URLRequestFilter, both under HTTP and HTTPS.
+  static void AddUrlHandlers(
       const base::FilePath& base_path,
       const scoped_refptr<base::SequencedWorkerPool>& worker_pool);
 
@@ -64,6 +64,7 @@ class URLRequestMockHTTPJob : public URLRequestFileJob {
   // Given the path to a file relative to the path passed to AddUrlHandler(),
   // construct a mock URL.
   static GURL GetMockUrl(const base::FilePath& path);
+  static GURL GetMockHttpsUrl(const base::FilePath& path);
 
   // Given the path to a file relative to the path passed to AddUrlHandler(),
   // construct a mock URL that reports |net_error| at given |phase| of the