DevTools: merge devtools_http_handler into content - it is used in all the embedders anyways.

headless/lib/browser/headless_devtools_manager_delegate.cc

 // Copyright 2016 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 "headless/lib/browser/headless_devtools_manager_delegate.h"
 
 #include <string>
 #include <utility>
 
 #include "content/public/browser/browser_thread.h"
@@ skipping 59 matching lines @@
 std::string HeadlessDevToolsManagerDelegate::GetTargetTitle(
     content::RenderFrameHost* host) {
   return "";
 }
 
 scoped_refptr<content::DevToolsAgentHost>
 HeadlessDevToolsManagerDelegate::CreateNewTarget(const GURL& url) {
   return nullptr;
 }
 
+std::string HeadlessDevToolsManagerDelegate::GetDiscoveryPageHTML() {
+  return ResourceBundle::GetSharedInstance().GetRawDataResource(
+      IDR_HEADLESS_LIB_DEVTOOLS_DISCOVERY_PAGE).as_string();
+}
+
+std::string HeadlessDevToolsManagerDelegate::GetFrontendResource(
+    const std::string& path) {
+  return content::DevToolsFrontendHost::GetFrontendResource(path).as_string();
+}
+
 std::unique_ptr<base::Value> HeadlessDevToolsManagerDelegate::CreateTarget(
     const base::DictionaryValue* params) {
   std::string url;
   std::string browser_context_id;
   int width = browser_->options()->window_size.width();
   int height = browser_->options()->window_size.height();
   params->GetString("url", &url);
   params->GetString("browserContextId", &browser_context_id);
   params->GetInteger("width", &width);
   params->GetInteger("height", &height);
@@ skipping 70 matching lines @@
     context->Close();
   }
 
   return browser::DisposeBrowserContextResult::Builder()
       .SetSuccess(success)
       .Build()
       ->Serialize();
 }
 
 }  // namespace headless