[DevTools] Load DevTools frontend without iframe (chromium part).

content/browser/devtools/devtools_frontend_host_impl.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 "content/browser/devtools/devtools_frontend_host_impl.h"
 
 #include "content/browser/bad_message.h"
 #include "content/common/devtools_messages.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_client.h"
 #include "grit/devtools_resources_map.h"
 
 namespace content {
 
+namespace {
+const char kCompatibilityScript[] = "devtools.js";
+}
+
 // static
 DevToolsFrontendHost* DevToolsFrontendHost::Create(
     RenderFrameHost* frontend_main_frame,
     DevToolsFrontendHost::Delegate* delegate) {
   return new DevToolsFrontendHostImpl(frontend_main_frame, delegate);
 }
 
 // static
 base::StringPiece DevToolsFrontendHost::GetFrontendResource(
     const std::string& path) {
   for (size_t i = 0; i < kDevtoolsResourcesSize; ++i) {
     if (path == kDevtoolsResources[i].name) {
       return GetContentClient()->GetDataResource(
           kDevtoolsResources[i].value, ui::SCALE_FACTOR_NONE);
     }
   }
   return std::string();
 }
 
 DevToolsFrontendHostImpl::DevToolsFrontendHostImpl(
     RenderFrameHost* frontend_main_frame,
     DevToolsFrontendHost::Delegate* delegate)
     : WebContentsObserver(
           WebContents::FromRenderFrameHost(frontend_main_frame)),
       delegate_(delegate) {
-  frontend_main_frame->Send(
-      new DevToolsMsg_SetupDevToolsClient(frontend_main_frame->GetRoutingID()));
+  frontend_main_frame->Send(new DevToolsMsg_SetupDevToolsClient(
+      frontend_main_frame->GetRoutingID(),
+      DevToolsFrontendHost::GetFrontendResource(
+          kCompatibilityScript).as_string()));
 }
 
 DevToolsFrontendHostImpl::~DevToolsFrontendHostImpl() {
 }
 
 void DevToolsFrontendHostImpl::BadMessageRecieved() {
   bad_message::ReceivedBadMessage(web_contents()->GetRenderProcessHost(),
                                   bad_message::DFH_BAD_EMBEDDER_MESSAGE);
 }
 
@@ skipping 17 matching lines @@
     const std::string& message) {
   delegate_->HandleMessageFromDevToolsFrontendToBackend(message);
 }
 
 void DevToolsFrontendHostImpl::OnDispatchOnEmbedder(
     const std::string& message) {
   delegate_->HandleMessageFromDevToolsFrontend(message);
 }
 
 }  // namespace content