[DevTools] Cleanup DevToolsTarget and DevToolsManagerDelegate after moving to devtools_discovery.

chrome/browser/android/dev_tools_manager_delegate_android.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 "chrome/browser/android/dev_tools_manager_delegate_android.h"
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "chrome/browser/history/top_sites_factory.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "components/devtools_discovery/devtools_discovery_manager.h"
-#include "components/history/core/browser/top_sites.h"
-#include "content/public/browser/devtools_agent_host.h"
-#include "content/public/browser/devtools_target.h"
-
-using content::DevToolsAgentHost;
-
-DevToolsManagerDelegateAndroid::DevToolsManagerDelegateAndroid()
-    : network_protocol_handler_(new DevToolsNetworkProtocolHandler()) {
-}
-
-DevToolsManagerDelegateAndroid::~DevToolsManagerDelegateAndroid() {
-}
-
-void DevToolsManagerDelegateAndroid::Inspect(
-    content::BrowserContext* browser_context,
-    content::DevToolsAgentHost* agent_host) {
-}
-
-base::DictionaryValue* DevToolsManagerDelegateAndroid::HandleCommand(
-    content::DevToolsAgentHost* agent_host,
-    base::DictionaryValue* command_dict) {
-  return network_protocol_handler_->HandleCommand(agent_host, command_dict);
-}
-
-void DevToolsManagerDelegateAndroid::DevToolsAgentStateChanged(
-    content::DevToolsAgentHost* agent_host,
-    bool attached) {
-  network_protocol_handler_->DevToolsAgentStateChanged(agent_host, attached);
-}
-
-scoped_ptr<content::DevToolsTarget>
-    DevToolsManagerDelegateAndroid::CreateNewTarget(const GURL& url) {
-  devtools_discovery::DevToolsDiscoveryManager* discovery_manager =
-      devtools_discovery::DevToolsDiscoveryManager::GetInstance();
-  return discovery_manager->CreateNew(url);
-}
-
-void DevToolsManagerDelegateAndroid::EnumerateTargets(TargetCallback callback) {
-  TargetList targets;
-  devtools_discovery::DevToolsDiscoveryManager* discovery_manager =
-      devtools_discovery::DevToolsDiscoveryManager::GetInstance();
-  for (const auto& descriptor : discovery_manager->GetDescriptors())
-    targets.push_back(descriptor);
-  callback.Run(targets);
-}
-
-std::string DevToolsManagerDelegateAndroid::GetPageThumbnailData(
-    const GURL& url) {
-  Profile* profile = ProfileManager::GetLastUsedProfile()->GetOriginalProfile();
-  scoped_refptr<history::TopSites> top_sites =
-      TopSitesFactory::GetForProfile(profile);
-  if (top_sites) {
-    scoped_refptr<base::RefCountedMemory> data;
-    if (top_sites->GetPageThumbnail(url, false, &data))
-      return std::string(data->front_as<char>(), data->size());
-  }
-  return std::string();
-}