Added the chrome://safe-browsing/ page as part of the chrome://about

components/safe_browsing/web_ui/safe_browsing_ui.cc

+// Copyright (c) 2017 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 "components/safe_browsing/web_ui/safe_browsing_ui.h"
+#include "components/grit/components_resources.h"
+#include "components/grit/components_scaled_resources.h"
+#include "components/safe_browsing/web_ui/constants.h"
+#include "components/strings/grit/components_strings.h"
+#include "content/public/browser/browser_context.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_data_source.h"
+
+SafeBrowsingUI::SafeBrowsingUI(content::WebUI* web_ui)
+    : content::WebUIController(web_ui) {
+  // Set up the chrome://safe-browsing source.
+  content::WebUIDataSource* html_source = content::WebUIDataSource::Create(
+      safe_browsing::kChromeUISafeBrowsingHost);
+
+  // Add localized string resources.
+  html_source->AddLocalizedString("sbUnderConstruction",
+                                  IDS_SB_UNDER_CONSTRUCTION);
+
+  // Add required resources.
+  html_source->AddResourcePath("safe_browsing.css", IDR_SAFE_BROWSING_CSS);
+  html_source->SetDefaultResource(IDR_SAFE_BROWSING_HTML);

[vakh (use Gerrit instead), 2017/06/23 18:52:03]

This line explains why the strings.js file was loading as HTML> It could not
find strings.js and tried to load the "default" resource instead.

+
+  content::BrowserContext* browser_context =
+      web_ui->GetWebContents()->GetBrowserContext();
+  content::WebUIDataSource::Add(browser_context, html_source);

[vakh (use Gerrit instead), 2017/06/23 18:52:02]

content::WebUIDataSource::Add(web_ui->GetWebContents()->GetBrowserContext(),
html_source);

+}
+
+SafeBrowsingUI::~SafeBrowsingUI() {}