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

chrome/browser/net/proxy_service_factory.h

Index: chrome/browser/net/proxy_service_factory.h
===================================================================
--- chrome/browser/net/proxy_service_factory.h	(revision 108608)
+++ chrome/browser/net/proxy_service_factory.h	(working copy)
@@ -8,9 +8,17 @@
 
 #include "base/basictypes.h"
 
+class ChromeProxyConfigService;
 class CommandLine;
-class PrefProxyConfigTracker;
+class PrefProxyConfigTrackerImpl;
+class PrefService;
 
+#if defined(OS_CHROMEOS)
+namespace chromeos {
+class ProxyConfigServiceImpl;
+}
+#endif  // defined(OS_CHROMEOS)
+
 namespace net {
 class NetLog;
 class ProxyConfigService;
@@ -22,9 +30,16 @@
  public:
   // Creates a ProxyConfigService that delivers the system preferences
   // (or the respective ChromeOS equivalent).
-  static net::ProxyConfigService* CreateProxyConfigService(
-      PrefProxyConfigTracker* proxy_config_tracker);
+  static ChromeProxyConfigService* CreateProxyConfigService();
 
+#if defined(OS_CHROMEOS)
+  static chromeos::ProxyConfigServiceImpl* CreatePrefProxyConfigTracker(
+      PrefService* pref_service);
+#else
+  static PrefProxyConfigTrackerImpl* CreatePrefProxyConfigTracker(
+      PrefService* pref_service);
+#endif  // defined(OS_CHROMEOS)
+
   // Create a proxy service according to the options on command line.
   static net::ProxyService* CreateProxyService(
       net::NetLog* net_log,