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

chrome/browser/devtools/remote_debugging_server.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 "chrome/browser/devtools/remote_debugging_server.h"
 
 #include "base/lazy_instance.h"
 #include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
-#include "chrome/browser/devtools/chrome_devtools_manager_delegate.h"
 #include "chrome/browser/history/top_sites_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_version_info.h"
 #include "components/devtools_http_handler/devtools_http_handler.h"
 #include "components/devtools_http_handler/devtools_http_handler_delegate.h"
 #include "components/history/core/browser/top_sites.h"
@@ skipping 57 matching lines @@
 
 class ChromeDevToolsHttpHandlerDelegate
     : public devtools_http_handler::DevToolsHttpHandlerDelegate {
  public:
   ChromeDevToolsHttpHandlerDelegate();
   ~ChromeDevToolsHttpHandlerDelegate() override;
 
   // devtools_http_handler::DevToolsHttpHandlerDelegate implementation.
   std::string GetDiscoveryPageHTML() override;
   std::string GetFrontendResource(const std::string& path) override;
+  std::string GetPageThumbnailData(const GURL& url) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ChromeDevToolsHttpHandlerDelegate);
 };
 
 ChromeDevToolsHttpHandlerDelegate::ChromeDevToolsHttpHandlerDelegate() {
 }
 
 ChromeDevToolsHttpHandlerDelegate::~ChromeDevToolsHttpHandlerDelegate() {
 }
@@ skipping 14 matching lines @@
   }
   return ResourceBundle::GetSharedInstance().GetRawDataResource(
       IDR_DEVTOOLS_DISCOVERY_PAGE_HTML).as_string();
 }
 
 std::string ChromeDevToolsHttpHandlerDelegate::GetFrontendResource(
     const std::string& path) {
   return content::DevToolsFrontendHost::GetFrontendResource(path).as_string();
 }
 
+std::string ChromeDevToolsHttpHandlerDelegate::GetPageThumbnailData(
+    const GURL& url) {
+  for (chrome::BrowserIterator it; !it.done(); it.Next()) {
+    Profile* profile = (*it)->profile();
+    scoped_refptr<history::TopSites> top_sites =
+        TopSitesFactory::GetForProfile(profile);
+    if (!top_sites)
+      continue;
+    scoped_refptr<base::RefCountedMemory> data;
+    if (top_sites->GetPageThumbnail(url, false, &data))
+      return std::string(data->front_as<char>(), data->size());
+  }
+  return std::string();
+}
+
 }  // namespace
 
 // static
 void RemoteDebuggingServer::EnableTetheringForDebug() {
   g_tethering_enabled.Get() = true;
 }
 
 RemoteDebuggingServer::RemoteDebuggingServer(
     chrome::HostDesktopType host_desktop_type,
     const std::string& ip,
     uint16 port) {
   base::FilePath output_dir;
   if (!port) {
     // The client requested an ephemeral port. Must write the selected
     // port to a well-known location in the profile directory to
     // bootstrap the connection process.
     bool result = PathService::Get(chrome::DIR_USER_DATA, &output_dir);
     DCHECK(result);
   }
 
-  manager_delegate_.reset(new ChromeDevToolsManagerDelegate());
-
   base::FilePath debug_frontend_dir;
 #if defined(DEBUG_DEVTOOLS)
   PathService::Get(chrome::DIR_INSPECTOR, &debug_frontend_dir);
 #endif
 
   chrome::VersionInfo version_info;
 
   devtools_http_handler_.reset(new devtools_http_handler::DevToolsHttpHandler(
       make_scoped_ptr(new TCPServerSocketFactory(ip, port)),
       std::string(),
       new ChromeDevToolsHttpHandlerDelegate(),
-      manager_delegate_.get(),
       output_dir,
       debug_frontend_dir,
       version_info.ProductNameAndVersionForUserAgent(),
       ::GetUserAgent()));
 }
 
 RemoteDebuggingServer::~RemoteDebuggingServer() {
 }