Allow huge data: URIs only via WebView.loadDataWithBaseUrl

content/browser/frame_host/render_frame_host_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.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 1860 matching lines @@
   // done here either.
   if (!common_params.url.SchemeIs(url::kJavaScriptScheme))
     frame_tree_node_->DidStartLoading(true);
 }
 
 void RenderFrameHostImpl::NavigateToInterstitialURL(const GURL& data_url) {
   DCHECK(data_url.SchemeIs(url::kDataScheme));
   CommonNavigationParams common_params(
       data_url, Referrer(), ui::PAGE_TRANSITION_LINK,
       FrameMsg_Navigate_Type::NORMAL, false, false, base::TimeTicks::Now(),
-      FrameMsg_UILoadMetricsReportType::NO_REPORT, GURL(), GURL(), LOFI_OFF,
-      base::TimeTicks::Now());
+      FrameMsg_UILoadMetricsReportType::NO_REPORT, GURL(), GURL(),
+      std::string(), LOFI_OFF, base::TimeTicks::Now());
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableBrowserSideNavigation)) {
     CommitNavigation(nullptr, nullptr, common_params,
                      RequestNavigationParams());
   } else {
     Navigate(common_params, StartNavigationParams(), RequestNavigationParams());
   }
 }
 
 void RenderFrameHostImpl::OpenURL(const FrameHostMsg_OpenURL_Params& params,
@@ skipping 607 matching lines @@
   *dst = src;
 
   if (src.routing_id != -1)
     dst->tree_id = RoutingIDToAXTreeID(src.routing_id);
 
   if (src.parent_routing_id != -1)
     dst->parent_tree_id = RoutingIDToAXTreeID(src.parent_routing_id);
 }
 
 }  // namespace content