Revise about: and chrome: url handling.

chrome/browser/ui/webui/chrome_url_data_manager_backend.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/webui/chrome_url_data_manager_backend.h"
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
@@ skipping 202 matching lines @@
     NotifyHeadersComplete();
   } else {
     NotifyStartError(net::URLRequestStatus(net::URLRequestStatus::FAILED,
                                            net::ERR_INVALID_URL));
   }
 }
 
 namespace {
 
 bool IsViewAppCacheInternalsURL(const GURL& url) {
-  return StartsWithASCII(url.spec(),
-                         chrome::kAppCacheViewInternalsURL,
-                         true /*case_sensitive*/);
+  return url.SchemeIs(chrome::kChromeUIScheme) &&
+         url.host() == chrome::kChromeUIAppCacheInternalsHost;
 }
 
 class ChromeProtocolHandler
     : public net::URLRequestJobFactory::ProtocolHandler {
  public:
   ChromeProtocolHandler(ChromeURLDataManagerBackend* backend,
                         ChromeAppCacheService* appcache_service);
   ~ChromeProtocolHandler();
 
   virtual net::URLRequestJob* MaybeCreateJob(
@@ skipping 243 matching lines @@
 
   return new URLRequestChromeJob(request, backend_);
 }
 
 }  // namespace
 
 net::URLRequestJobFactory::ProtocolHandler*
 CreateDevToolsProtocolHandler(ChromeURLDataManagerBackend* backend) {
   return new DevToolsJobFactory(backend);
 }