redesign and reimplement proxy config service and tracker, revise proxy ui on cros

chrome/browser/net/proxy_service_factory.cc

 // Copyright (c) 2011 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/net/proxy_service_factory.h"
 
 #include "base/command_line.h"
 #include "base/string_number_conversions.h"
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/net/pref_proxy_config_service.h"
 #include "chrome/browser/io_thread.h"
+#include "chrome/browser/net/pref_proxy_config_tracker.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/browser/browser_thread.h"
 #include "net/base/net_log.h"
 #include "net/proxy/dhcp_proxy_script_fetcher_factory.h"
 #include "net/proxy/proxy_config_service.h"
 #include "net/proxy/proxy_script_fetcher_impl.h"
 #include "net/proxy/proxy_service.h"
 #include "net/url_request/url_request_context.h"
 
 #if defined(OS_CHROMEOS)
-#include "chrome/browser/chromeos/proxy_config_service.h"
+#include "chrome/browser/chromeos/proxy_config_service_impl.h"
 #endif  // defined(OS_CHROMEOS)
 
 // static
-net::ProxyConfigService* ProxyServiceFactory::CreateProxyConfigService(
-    PrefProxyConfigTracker* proxy_config_tracker) {
+ChromeProxyConfigService* ProxyServiceFactory::CreateProxyConfigService() {
   // The linux gconf-based proxy settings getter relies on being initialized
   // from the UI thread.
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
-  // Create a baseline service that provides proxy configuration in case nothing
-  // is configured through prefs (Note: prefs include command line and
-  // configuration policy).
   net::ProxyConfigService* base_service = NULL;
 
+#if !defined(OS_CHROMEOS)
+  // On ChromeOS, base service is NULL; chromeos::ProxyConfigServiceImpl
+  // determines the effective proxy config to take effect in the network layer,
+  // be it from prefs or system (which is network flimflam on chromeos).
+
+  // For other platforms, create a baseline service that provides proxy
+  // configuration in case nothing is configured through prefs (Note: prefs
+  // include command line and configuration policy).
+
   // TODO(port): the IO and FILE message loops are only used by Linux.  Can
   // that code be moved to chrome/browser instead of being in net, so that it
   // can use BrowserThread instead of raw MessageLoop pointers? See bug 25354.
-#if defined(OS_CHROMEOS)
-  base_service = new chromeos::ProxyConfigService(
-      g_browser_process->chromeos_proxy_config_service_impl());
-#else
   base_service = net::ProxyService::CreateSystemProxyConfigService(
       g_browser_process->io_thread()->message_loop(),
       g_browser_process->file_thread()->message_loop());
+#endif  // !defined(OS_CHROMEOS)
+
+  return new ChromeProxyConfigService(base_service);
+}
+
+// static
+#if defined(OS_CHROMEOS)
+chromeos::ProxyConfigServiceImpl*
+    ProxyServiceFactory::CreatePrefProxyConfigTracker(
+        PrefService* pref_service) {
+  return new chromeos::ProxyConfigServiceImpl(pref_service);
+}
+#else
+PrefProxyConfigTracker* ProxyServiceFactory::CreatePrefProxyConfigTracker(
+    PrefService* pref_service) {
+  return new PrefProxyConfigTracker(pref_service);
+}
 #endif  // defined(OS_CHROMEOS)
 
-  return new PrefProxyConfigService(proxy_config_tracker, base_service);
-}
-
 // static
 net::ProxyService* ProxyServiceFactory::CreateProxyService(
     net::NetLog* net_log,
     net::URLRequestContext* context,
     net::ProxyConfigService* proxy_config_service,
     const CommandLine& command_line) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   bool use_v8 = !command_line.HasSwitch(switches::kWinHttpProxyResolver);
   if (use_v8 && command_line.HasSwitch(switches::kSingleProcess)) {
@@ skipping 36 matching lines @@
         context->network_delegate());
   } else {
     proxy_service = net::ProxyService::CreateUsingSystemProxyResolver(
         proxy_config_service,
         num_pac_threads,
         net_log);
   }
 
   return proxy_service;
 }