Allow view-source of pages fully-blocked by Blink's XSS filter.

content/browser/web_contents/web_contents_impl.cc

Index: content/browser/web_contents/web_contents_impl.cc
diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc
index 8918d4311a0a1189bb8c01fb0b1c102ea91ebe3e..681cc5cb911dd969c782d8115ffcff296da16c53 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -524,6 +524,7 @@ bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host,
                         OnDidDisplayInsecureContent)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent,
                         OnDidRunInsecureContent)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_DidDetectXSS, OnDidDetectXSS)
     IPC_MESSAGE_HANDLER(ViewHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateZoomLimits, OnUpdateZoomLimits)
     IPC_MESSAGE_HANDLER(ViewHostMsg_EnumerateDirectory, OnEnumerateDirectory)
@@ -2549,6 +2550,15 @@ void WebContentsImpl::OnDidRunInsecureContent(
       GetController().GetBrowserContext());
 }
 
+void WebContentsImpl::OnDidDetectXSS(const GURL& url,
+                                     bool blocked_entire_page) {
+  NavigationEntry* entry = controller_.GetLastCommittedEntry();

[sky, 2014/06/03 22:12:16]

How do you know lastcommittedentry is the right entry? Would it be safer to pass
in the page id?

+  if (!entry)
+    return;
+  entry->SetExtraData("XSSDetected",
+                      base::ASCIIToUTF16(blocked_entire_page ? "1" : "0"));
+}
+
 void WebContentsImpl::OnDocumentLoadedInFrame() {
   CHECK(render_frame_message_source_);
   CHECK(!render_view_message_source_);