Add the scheme chrome-distiller:// and hook up data source.

chrome/browser/chrome_content_browser_client.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 "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 1026 matching lines @@
       return false;
     }
   }
 
   // Hosted apps that have script access to their background page must use
   // process per site, since all instances can make synchronous calls to the
   // background window.  Other extensions should use process per site as well.
   return true;
 }
 
-// These are treated as WebUI schemes but do not get WebUI bindings.
+// These are treated as WebUI schemes but do not get WebUI bindings. Also,
+// view-source is allowed for these schemes.
 void ChromeContentBrowserClient::GetAdditionalWebUISchemes(
     std::vector<std::string>* additional_schemes) {
   additional_schemes->push_back(chrome::kChromeSearchScheme);
+  additional_schemes->push_back(chrome::kDomDistillerScheme);
 }
 
 net::URLRequestContextGetter*
 ChromeContentBrowserClient::CreateRequestContext(
     content::BrowserContext* browser_context,
     content::ProtocolHandlerMap* protocol_handlers) {
   Profile* profile = Profile::FromBrowserContext(browser_context);
   return profile->CreateRequestContext(protocol_handlers);
 }
 
@@ skipping 1604 matching lines @@
   // releases of Chrome. Permitting "Unknown" allows these APIs to be used on
   // Chromium builds as well.
   return channel <= chrome::VersionInfo::CHANNEL_DEV;
 #else
   return false;
 #endif
 }
 
 
 }  // namespace chrome