Convert some NetError[Tab]Helper messages to mojom

chrome/common/render_messages.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.
 
 // Multiply-included file, no traditional include guard.
 #include <stdint.h>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
@@ skipping 288 matching lines @@
 
 // JavaScript related messages -----------------------------------------------
 
 // Provides the renderer with the results of the browser's investigation into
 // why a recent main frame load failed (currently, just DNS probe result).
 // NetErrorHelper will receive this mesage and replace or update the error
 // page with more specific troubleshooting suggestions.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_NetErrorInfo,
                     int /* DNS probe status */)
 
-// Tells the renderer whether or not there is a local diagnostics service that
-// can be run via ChromeViewHostMsg_RunNetworkDiagnostics messages.
-IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetCanShowNetworkDiagnosticsDialog,
-                    bool /* can_show_network_diagnostics_dialog */)
-
 #if defined(OS_ANDROID)
 // Tells the renderer whether or not offline pages exist. This is used to
 // decide if offline related button will be provided on certain error page.
 IPC_MESSAGE_ROUTED1(ChromeViewMsg_SetHasOfflinePages,
                     bool /* has_offline_pages */)
 #endif  // defined(OS_ANDROID)
 
 // Provides the information needed by the renderer process to contact a
 // navigation correction service.  Handled by the NetErrorHelper.
 IPC_MESSAGE_ROUTED5(ChromeViewMsg_SetNavigationCorrectionInfo,
                     GURL /* Navigation correction service base URL */,
                     std::string /* language */,
                     std::string /* origin_country */,
                     std::string /* API key to use */,
                     GURL /* Google Search URL to use */)
 
-IPC_MESSAGE_ROUTED1(ChromeViewHostMsg_RunNetworkDiagnostics,
-                    GURL /* failed_url */)
-
 #if defined(OS_ANDROID)
 // Message sent from the renderer to the browser to show the UI for offline
 // pages.
 IPC_MESSAGE_ROUTED0(ChromeViewHostMsg_ShowOfflinePages)
 #endif  // defined(OS_ANDROID)
 
 //-----------------------------------------------------------------------------
 // Misc messages
 // These are messages sent from the renderer to the browser process.
 
@@ skipping 227 matching lines @@
 
 // Record a sample string to a Rappor metric.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_RecordRappor,
                      std::string /* metric */,
                      std::string /* sample */)
 
 // Record a domain and registry of a url to a Rappor metric.
 IPC_MESSAGE_CONTROL2(ChromeViewHostMsg_RecordRapporURL,
                      std::string /* metric */,
                      GURL /* sample url */)