DevTools: simplify http handler delegate as it is moving into content.

content/browser/devtools/render_frame_devtools_agent_host.cc

 // Copyright (c) 2012 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 "content/browser/devtools/render_frame_devtools_agent_host.h"
 
 #include <tuple>
 #include <utility>
 
 #include "base/guid.h"
@@ skipping 902 matching lines @@
   if (web_contents && !IsChildFrame())
     return web_contents->GetVisibleURL();
   if (pending_)
     return pending_->host()->GetLastCommittedURL();
   if (current_)
     return current_->host()->GetLastCommittedURL();
   return GURL();
 }
 
 GURL RenderFrameDevToolsAgentHost::GetFaviconURL() {
+  WebContents* wc = web_contents();
+  if (!wc)
+    return GURL();
+  NavigationEntry* entry = wc->GetController().GetLastCommittedEntry();
+  if (entry)
+    return entry->GetFavicon().url;
   return GURL();
 }
 
 bool RenderFrameDevToolsAgentHost::Activate() {
   WebContentsImpl* wc = static_cast<WebContentsImpl*>(web_contents());
   if (wc) {
     wc->Activate();
     return true;
   }
   return false;
@@ skipping 84 matching lines @@
     RenderFrameHost* host) {
   return (current_ && current_->host() == host) ||
       (pending_ && pending_->host() == host);
 }
 
 bool RenderFrameDevToolsAgentHost::IsChildFrame() {
   return current_ && current_->host()->GetParent();
 }
 
 }  // namespace content