Do not reset the content settings delegate's cookies when a network error occurred.

chrome/browser/renderer_host/render_view_host.cc

Index: chrome/browser/renderer_host/render_view_host.cc
diff --git a/chrome/browser/renderer_host/render_view_host.cc b/chrome/browser/renderer_host/render_view_host.cc
index 9d701fc344938b29d49c7db78103fe7bb448d8cf..9b4c9681a9a04f905a52a01ba55dd416ee9ef4dc 100644
--- a/chrome/browser/renderer_host/render_view_host.cc
+++ b/chrome/browser/renderer_host/render_view_host.cc
@@ -1189,6 +1189,7 @@ void RenderViewHost::OnMsgDidRunInsecureContent(
 void RenderViewHost::OnMsgDidStartProvisionalLoadForFrame(long long frame_id,
                                                           bool is_main_frame,
                                                           const GURL& url) {
+  bool unreachable_web_data = (url.spec() == chrome::kUnreachableWebDataURL);
   GURL validated_url(url);
   FilterURL(ChildProcessSecurityPolicy::GetInstance(),
             process()->id(), &validated_url);
@@ -1197,7 +1198,7 @@ void RenderViewHost::OnMsgDidStartProvisionalLoadForFrame(long long frame_id,
       delegate_->GetResourceDelegate();
   if (resource_delegate) {
     resource_delegate->DidStartProvisionalLoadForFrame(
-        this, frame_id, is_main_frame, validated_url);
+        this, frame_id, is_main_frame, unreachable_web_data, validated_url);
   }
 }