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

content/public/browser/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 "content/public/browser/devtools_agent_host.h"
+#include "content/public/browser/devtools_manager_delegate.h"
+
+namespace content {
+
+void DevToolsManagerDelegate::Inspect(DevToolsAgentHost* agent_host) {
+}
+
+void DevToolsManagerDelegate::DevToolsAgentStateChanged(
+    DevToolsAgentHost* agent_host, bool attached) {
+}
+
+std::string DevToolsManagerDelegate::GetTargetType(RenderFrameHost* host) {
+  return DevToolsAgentHost::kTypePage;
+}
+
+std::string DevToolsManagerDelegate::GetTargetTitle(RenderFrameHost* host) {
+  return std::string();
+}
+
+std::string DevToolsManagerDelegate::GetTargetDescription(
+    RenderFrameHost* host) {
+  return std::string();
+}
+
+scoped_refptr<DevToolsAgentHost> DevToolsManagerDelegate::CreateNewTarget(
+    const GURL& url) {
+  return nullptr;
+}
+
+base::DictionaryValue* DevToolsManagerDelegate::HandleCommand(
+      DevToolsAgentHost* agent_host,
+      base::DictionaryValue* command) {
+  return nullptr;
+}
+
+std::string DevToolsManagerDelegate::GetDiscoveryPageHTML() {
+  return std::string();
+}
+
+std::string DevToolsManagerDelegate::GetFrontendResource(
+    const std::string& path) {
+  return std::string();
+}
+
+DevToolsManagerDelegate::~DevToolsManagerDelegate() {
+}
+
+}  // namespace content