Allow huge data: URIs only via WebView.loadDataWithBaseUrl

content/browser/frame_host/navigation_controller_impl.cc

 // Copyright 2013 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.
 
 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  *     (http://www.torchmobile.com/)
  *
@@ skipping 778 matching lines @@
     case LOAD_TYPE_DEFAULT:
       break;
     case LOAD_TYPE_BROWSER_INITIATED_HTTP_POST:
       entry->SetHasPostData(true);
       entry->SetBrowserInitiatedPostData(
           params.browser_initiated_post_data.get());
       break;
     case LOAD_TYPE_DATA:
       entry->SetBaseURLForDataURL(params.base_url_for_data_url);
       entry->SetVirtualURL(params.virtual_url_for_data_url);
+      entry->SetDataURLAsString(params.data_url_as_string);

[boliu, 2015/12/09 19:33:02]

probably want to assert here that GetURL is empty?

       entry->SetCanLoadLocalResources(params.can_load_local_resources);
       break;
     default:
       NOTREACHED();
       break;
   };
 
   LoadEntry(entry.Pass());
 }
 
@@ skipping 1223 matching lines @@
     }
   }
 }
 
 void NavigationControllerImpl::SetGetTimestampCallbackForTest(
     const base::Callback<base::Time()>& get_timestamp_callback) {
   get_timestamp_callback_ = get_timestamp_callback;
 }
 
 }  // namespace content