Do not sanitize about:blank/#foo & about:blank?foo

content/public/common/url_constants.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 "build/build_config.h"
 #include "content/public/common/url_constants.h"
 
 namespace content {
 
 // Before adding new chrome schemes please check with security@chromium.org.
 // There are security implications associated with introducing new schemes.
 const char kChromeDevToolsScheme[] = "chrome-devtools";
 const char kChromeUIScheme[] = "chrome";
 const char kGuestScheme[] = "chrome-guest";
 const char kViewSourceScheme[] = "view-source";
 #if defined(OS_CHROMEOS)
 const char kExternalFileScheme[] = "externalfile";
 #endif
 
 const char kAboutSrcDocURL[] = "about:srcdoc";
 
+const char kAboutBlankPath[] = "blank";
+const char kAboutBlankWithHashPath[] = "blank/";
+
 const char kChromeUIAppCacheInternalsHost[] = "appcache-internals";
 const char kChromeUIIndexedDBInternalsHost[] = "indexeddb-internals";
 const char kChromeUIAccessibilityHost[] = "accessibility";
 const char kChromeUIBlobInternalsHost[] = "blob-internals";
 const char kChromeUIBrowserCrashHost[] = "inducebrowsercrashforrealz";
 const char kChromeUIDinoHost[] = "dino";
 const char kChromeUIGpuHost[] = "gpu";
 const char kChromeUIHistogramHost[] = "histograms";
 const char kChromeUIHistoryHost[] = "history";
 const char kChromeUIMediaInternalsHost[] = "media-internals";
@@ skipping 26 matching lines @@
 
 // This error URL is loaded in normal web renderer processes, so it should not
 // have a chrome:// scheme that might let it be confused with a WebUI page.
 const char kUnreachableWebDataURL[] = "data:text/html,chromewebdata";
 
 const char kChromeUINetworkViewCacheURL[] = "chrome://view-http-cache/";
 const char kChromeUIResourcesURL[] = "chrome://resources/";
 const char kChromeUIShorthangURL[] = "chrome://shorthang/";
 
 }  // namespace content