[wip] Add LiteralStringPiece which templatizes based on character length

extensions/browser/api/web_request/web_request_permissions.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 "extensions/browser/api/web_request/web_request_permissions.h"
 
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "chromeos/login/login_state.h"
@@ skipping 32 matching lines @@
 // Returns true if the URL is sensitive and requests to this URL must not be
 // modified/canceled by extensions, e.g. because it is targeted to the webstore
 // to check for updates, extension blacklisting, etc.
 bool IsSensitiveURL(const GURL& url) {
   // TODO(battre) Merge this, CanExtensionAccessURL and
   // PermissionsData::CanAccessPage into one function.
   bool sensitive_chrome_url = false;
   const base::StringPiece& host = url.host_piece();
   const char kGoogleCom[] = "google.com";
   const char kClient[] = "clients";
-  if (url.DomainIs(kGoogleCom)) {
+  if (url.DomainIs(base::LiteralStringPiece(kGoogleCom))) {
     // Check for "clients[0-9]*.google.com" hosts.
     // This protects requests to several internal services such as sync,
     // extension update pings, captive portal detection, fraudulent certificate
     // reporting, autofill and others.
     if (base::StartsWith(host, kClient, base::CompareCase::SENSITIVE)) {
       bool match = true;
       for (base::StringPiece::const_iterator
                i = host.begin() + strlen(kClient),
                end = host.end() - (strlen(kGoogleCom) + 1);
            i != end; ++i) {
         if (!isdigit(*i)) {
           match = false;
           break;
         }
       }
       sensitive_chrome_url = sensitive_chrome_url || match;
     }
     // This protects requests to safe browsing, link doctor, and possibly
     // others.
-    sensitive_chrome_url = sensitive_chrome_url ||
-                           url.DomainIs("clients.google.com") ||
-                           url.DomainIs("sb-ssl.google.com") ||
-                           (url.DomainIs("chrome.google.com") &&
-                            base::StartsWith(url.path_piece(), "/webstore",
-                                             base::CompareCase::SENSITIVE));
+    sensitive_chrome_url =
+        sensitive_chrome_url ||
+        url.DomainIs(base::LiteralStringPiece("clients.google.com")) ||
+        url.DomainIs(base::LiteralStringPiece("sb-ssl.google.com")) ||
+        (url.DomainIs(base::LiteralStringPiece("chrome.google.com")) &&
+         base::StartsWith(url.path_piece(), "/webstore",
+                          base::CompareCase::SENSITIVE));
   }
   return sensitive_chrome_url || extension_urls::IsWebstoreUpdateUrl(url) ||
          extension_urls::IsBlacklistUpdateUrl(url);
 }
 
 // static
 bool WebRequestPermissions::HideRequest(
     const extensions::InfoMap* extension_info_map,
     const net::URLRequest* request,
     extensions::ExtensionNavigationUIData* navigation_ui_data) {
@@ skipping 78 matching lines @@
       break;
     case REQUIRE_ALL_URLS:
       if (extension->permissions_data()->HasEffectiveAccessToAllHosts())
         access = PermissionsData::ACCESS_ALLOWED;
       // else ACCESS_DENIED
       break;
   }
 
   return access;
 }