Prepending view-source: does not load the source of the userscript.

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 7cb9e0ed1be43cbf47c9b7c47186fed214549f16..fe52ac01886bedfc97b83dcbff7cf5a70b23bc6f 100644
--- a/content/browser/web_contents/web_contents_impl.cc
+++ b/content/browser/web_contents/web_contents_impl.cc
@@ -215,6 +215,9 @@ void MakeNavigateParams(const NavigationEntryImpl& entry,
       entry.transferred_global_request_id().child_id;
   params->transferred_request_request_id =
       entry.transferred_global_request_id().request_id;
+  // We only want to allow downloading if "view-source:" is not pre-pended.

[darin (slow to review), 2012/04/26 21:54:49]

nit: no need to repeat the code so precisely in this comment.  maybe just
simplify to "// Avoid downloading when in view-source mode."

nit: use entry.IsViewSourceMode() here instead.

+  params->allow_download =
+      !entry.GetVirtualURL().SchemeIs(chrome::kViewSourceScheme);
 
   if (delegate)
     delegate->AddNavigationHeaders(params->url, &params->extra_headers);