GuestViews should be able to specify task manager entries

extensions/browser/guest_view/guest_view_base.cc

 // Copyright 2014 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 "extensions/browser/guest_view/guest_view_base.h"
 
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 342 matching lines @@
   if (!IsDragAndDropEnabled()) {
     const char script[] = "window.addEventListener('dragstart', function() { "
                           "  window.event.preventDefault(); "
                           "});";
     render_view_host->GetMainFrame()->ExecuteJavaScript(
         base::ASCIIToUTF16(script));
   }
   DidStopLoading();
 }
 
+base::string16 GuestViewBase::GetTaskName() const {
+  return base::string16();
+}
+
 void GuestViewBase::RenderViewReady() {
   GuestReady();
   content::RenderViewHost* rvh = guest_web_contents()->GetRenderViewHost();
   if (auto_size_enabled_) {
     rvh->EnableAutoResize(min_auto_size_, max_auto_size_);
   } else {
     rvh->DisableAutoResize(element_size_);
   }
 }
 
@@ skipping 66 matching lines @@
                       guest_web_contents);
   callback.Run(guest_web_contents);
 }
 
 // static
 void GuestViewBase::RegisterGuestViewTypes() {
   ExtensionsAPIClient::Get()->RegisterGuestViewTypes();
 }
 
 }  // namespace extensions