Block webpages from navigating to view-source URLs

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 1256 matching lines @@
   WebString chrome_scheme(base::ASCIIToUTF16(kChromeUIScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_scheme);
   WebSecurityPolicy::registerURLSchemeAsNotAllowingJavascriptURLs(
       chrome_scheme);
   WebSecurityPolicy::registerURLSchemeAsSecure(chrome_scheme);
   WebSecurityPolicy::registerURLSchemeAsCORSEnabled(chrome_scheme);
 
   // chrome-devtools:
   WebString devtools_scheme(base::ASCIIToUTF16(kChromeDevToolsScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(devtools_scheme);
+
+  // view-source:
+  WebString view_source_scheme(base::ASCIIToUTF16(kViewSourceScheme));
+  WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(view_source_scheme);
 }
 
 void RenderThreadImpl::NotifyTimezoneChange() {
   NotifyTimezoneChangeOnThisThread();
   RenderThread::Get()->PostTaskToAllWebWorkers(
       base::Bind(&NotifyTimezoneChangeOnThisThread));
 }
 
 void RenderThreadImpl::RecordAction(const base::UserMetricsAction& action) {
   Send(new ViewHostMsg_UserMetricsRecordAction(action.str_));
@@ skipping 796 matching lines @@
       v8_memory_pressure_level == v8::MemoryPressureLevel::kCritical)
     v8_memory_pressure_level = v8::MemoryPressureLevel::kModerate;
 
   blink::mainThreadIsolate()->MemoryPressureNotification(
       v8_memory_pressure_level);
   blink::MemoryPressureNotificationToWorkerThreadIsolates(
       v8_memory_pressure_level);
 }
 
 }  // namespace content