<extensionview>: Set src as relative URL on loadcommit

extensions/browser/guest_view/extension_view/extension_view_guest.cc

Index: extensions/browser/guest_view/extension_view/extension_view_guest.cc
diff --git a/extensions/browser/guest_view/extension_view/extension_view_guest.cc b/extensions/browser/guest_view/extension_view/extension_view_guest.cc
index b4220b9203f068168cfdab869410fbc2158d8dcb..5a2a7d675223ee851729f89e5b9f765cbed7234d 100644
--- a/extensions/browser/guest_view/extension_view/extension_view_guest.cc
+++ b/extensions/browser/guest_view/extension_view/extension_view_guest.cc
@@ -129,8 +129,15 @@ void ExtensionViewGuest::DidCommitProvisionalLoadForFrame(
   if (!render_frame_host->GetParent())

[Fady Samuel, 2015/02/18 21:50:25]

Since you're only using this event to update the src attribute, I'd just exit
early here.

if (render_frame_host->GetParent())
  return;

[apacible, 2015/02/18 22:02:56]

Done.

     view_page_ = url;
 
+  // Gets chrome-extension://extensionid/ prefix.
+  std::string prefix = url.GetWithEmptyPath().spec();
+  std::string relative_url = url.spec();
+
+  // Removes the prefix.
+  ReplaceFirstSubstringAfterOffset(&relative_url, 0, prefix, "");

[Fady Samuel, 2015/02/18 21:50:25]

Add the include for the header at the top.

[apacible, 2015/02/18 22:02:56]

Done.

+
   scoped_ptr<base::DictionaryValue> args(new base::DictionaryValue());
-  args->SetString(guestview::kUrl, url.spec());
+  args->SetString(guestview::kUrl, relative_url);
   DispatchEventToView(
       new GuestViewBase::Event(extensionview::kEventLoadCommit, args.Pass()));
 }