Reorganizes Chromecast code to better reflect functional dependencies.

chromecast/shell/browser/devtools/remote_debugging_server.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 "chromecast/shell/browser/devtools/remote_debugging_server.h"
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/strings/stringprintf.h"
-#include "chromecast/common/chromecast_config.h"
-#include "chromecast/common/pref_names.h"
-#include "chromecast/shell/browser/devtools/cast_dev_tools_delegate.h"
-#include "content/public/browser/browser_context.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/devtools_http_handler.h"
-#include "content/public/common/content_switches.h"
-#include "content/public/common/user_agent.h"
-#include "net/socket/tcp_server_socket.h"
-
-#if defined(OS_ANDROID)
-#include "content/public/browser/android/devtools_auth.h"
-#include "net/socket/unix_domain_server_socket_posix.h"
-#endif  // defined(OS_ANDROID)
-
-namespace chromecast {
-namespace shell {
-
-namespace {
-
-#if defined(OS_ANDROID)
-const char kFrontEndURL[] =
-    "http://chrome-devtools-frontend.appspot.com/serve_rev/%s/devtools.html";
-#endif  // defined(OS_ANDROID)
-const int kDefaultRemoteDebuggingPort = 9222;
-
-#if defined(OS_ANDROID)
-class UnixDomainServerSocketFactory
-    : public content::DevToolsHttpHandler::ServerSocketFactory {
- public:
-  explicit UnixDomainServerSocketFactory(const std::string& socket_name)
-      : content::DevToolsHttpHandler::ServerSocketFactory(socket_name, 0, 1) {}
-
- private:
-  // content::DevToolsHttpHandler::ServerSocketFactory.
-  virtual scoped_ptr<net::ServerSocket> Create() const override {
-    return scoped_ptr<net::ServerSocket>(
-        new net::UnixDomainServerSocket(
-            base::Bind(&content::CanUserConnectToDevTools),
-            true /* use_abstract_namespace */));
-  }
-
-  DISALLOW_COPY_AND_ASSIGN(UnixDomainServerSocketFactory);
-};
-#else
-class TCPServerSocketFactory
-    : public content::DevToolsHttpHandler::ServerSocketFactory {
- public:
-  TCPServerSocketFactory(const std::string& address, int port, int backlog)
-      : content::DevToolsHttpHandler::ServerSocketFactory(
-            address, port, backlog) {}
-
- private:
-  // content::DevToolsHttpHandler::ServerSocketFactory.
-  virtual scoped_ptr<net::ServerSocket> Create() const override {
-    return scoped_ptr<net::ServerSocket>(
-        new net::TCPServerSocket(NULL, net::NetLog::Source()));
-  }
-
-  DISALLOW_COPY_AND_ASSIGN(TCPServerSocketFactory);
-};
-#endif
-
-scoped_ptr<content::DevToolsHttpHandler::ServerSocketFactory>
-CreateSocketFactory(int port) {
-#if defined(OS_ANDROID)
-  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-  std::string socket_name = "content_shell_devtools_remote";
-  if (command_line->HasSwitch(switches::kRemoteDebuggingSocketName)) {
-    socket_name = command_line->GetSwitchValueASCII(
-        switches::kRemoteDebuggingSocketName);
-  }
-  return scoped_ptr<content::DevToolsHttpHandler::ServerSocketFactory>(
-      new UnixDomainServerSocketFactory(socket_name));
-#else
-  return scoped_ptr<content::DevToolsHttpHandler::ServerSocketFactory>(
-      new TCPServerSocketFactory("0.0.0.0", port, 1));
-#endif
-}
-
-std::string GetFrontendUrl() {
-#if defined(OS_ANDROID)
-  return base::StringPrintf(kFrontEndURL, content::GetWebKitRevision().c_str());
-#else
-  return std::string();
-#endif  // defined(OS_ANDROID)
-}
-
-}  // namespace
-
-RemoteDebuggingServer::RemoteDebuggingServer()
-    : devtools_http_handler_(NULL),
-      port_(0) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-  pref_port_.Init(prefs::kRemoteDebuggingPort,
-                  ChromecastConfig::GetInstance()->pref_service(),
-                  base::Bind(&RemoteDebuggingServer::OnPortChanged,
-                             base::Unretained(this)));
-
-  // Starts new dev tools, clearing port number saved in config.
-  // Remote debugging in production must be triggered only by config server.
-  pref_port_.SetValue(ShouldStartImmediately() ?
-                      kDefaultRemoteDebuggingPort : 0);
-  OnPortChanged();
-}
-
-RemoteDebuggingServer::~RemoteDebuggingServer() {
-  pref_port_.SetValue(0);
-  OnPortChanged();
-}
-
-void RemoteDebuggingServer::OnPortChanged() {
-  int new_port = *pref_port_;
-  if (new_port < 0) {
-    new_port = 0;
-  }
-  VLOG(1) << "OnPortChanged called: old_port=" << port_
-          << ", new_port=" << new_port;
-
-  if (new_port == port_) {
-    VLOG(1) << "Port has not been changed. Ignore silently.";
-    return;
-  }
-
-  if (devtools_http_handler_) {
-    LOG(INFO) << "Stop old devtools: port=" << port_;
-    // Note: Stop destroys devtools_http_handler_.
-    devtools_http_handler_->Stop();
-    devtools_http_handler_ = NULL;
-  }
-
-  port_ = new_port;
-  if (port_ > 0) {
-    devtools_http_handler_ = content::DevToolsHttpHandler::Start(
-        CreateSocketFactory(port_),
-        GetFrontendUrl(),
-        new CastDevToolsDelegate(),
-        base::FilePath());
-    LOG(INFO) << "Devtools started: port=" << port_;
-  }
-}
-
-}  // namespace shell
-}  // namespace chromecast