re-use WebUIs

content/browser/webui/web_ui_impl.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/webui/web_ui_impl.h"
 
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
 #include "base/stl_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 61 matching lines @@
   IPC_BEGIN_MESSAGE_MAP(WebUIImpl, message)
     IPC_MESSAGE_HANDLER(ViewHostMsg_WebUISend, OnWebUISend)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void WebUIImpl::OnWebUISend(const GURL& source_url,
                             const std::string& message,
                             const ListValue& args) {
-  // If the URL comes from a url where the document is not available, that can
-  // only mean that the page navigated or reloaded while a WebUISend IPC was in
-  // flight. We should not handle these orphaned WebUISends.
-  if (document_available_origins_.find(source_url.GetOrigin()) ==
-      document_available_origins_.end()) {
-    return;
-  }
-
   if (!ChildProcessSecurityPolicyImpl::GetInstance()->
           HasWebUIBindings(web_contents_->GetRenderProcessHost()->GetID())) {
     NOTREACHED() << "Blocked unauthorized use of WebUIBindings.";
     return;
   }
 
   ProcessWebUIMessage(source_url, message, args);
 }
 
 void WebUIImpl::RenderViewCreated(content::RenderViewHost* render_view_host) {
@@ skipping 11 matching lines @@
 #endif  // defined(TOOLKIT_VIEWS)
 
   // Let the WebUI know that we're looking for UI that's optimized for touch
   // input.
   // TODO(rbyers) Figure out the right model for enabling touch-optimized UI
   // (http://crbug.com/105380).
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kTouchOptimizedUI))
     render_view_host->SetWebUIProperty("touchOptimized", "true");
 }
 
-void WebUIImpl::DocumentAvailableInFrame(const GURL& source_url) {
-  document_available_origins_.insert(source_url.GetOrigin());
-}
-
 WebContents* WebUIImpl::GetWebContents() const {
   return web_contents_;
 }
 
 bool WebUIImpl::ShouldHideFavicon() const {
   return hide_favicon_;
 }
 
 void WebUIImpl::HideFavicon() {
   hide_favicon_ = true;
@@ skipping 135 matching lines @@
   handler->set_web_ui(this);
   handler->RegisterMessages();
   handlers_.push_back(handler);
 }
 
 void WebUIImpl::ExecuteJavascript(const string16& javascript) {
   static_cast<RenderViewHostImpl*>(
       web_contents_->GetRenderViewHost())->ExecuteJavascriptInWebFrame(
       ASCIIToUTF16(frame_xpath_), javascript);
 }