Enable tab sync on all platforms by default.

chrome/browser/sync/profile_sync_components_factory_impl.cc

Index: chrome/browser/sync/profile_sync_components_factory_impl.cc
diff --git a/chrome/browser/sync/profile_sync_components_factory_impl.cc b/chrome/browser/sync/profile_sync_components_factory_impl.cc
index a8eba4a6f5377c501e0f2c7034dfa851c04669fd..07b03e8d029e1bebcbb9b99f5215b922c2f274f0 100644
--- a/chrome/browser/sync/profile_sync_components_factory_impl.cc
+++ b/chrome/browser/sync/profile_sync_components_factory_impl.cc
@@ -154,8 +154,7 @@ void ProfileSyncComponentsFactoryImpl::RegisterDataTypes(
 
   // Session sync is disabled by default, but has some logic to automatically
   // enable.  Register only if explicitly enabled and not explicitly disabled.

[Nicolas Zea, 2012/03/15 17:58:52]

Update comment (enabled by default now).

[Patrick Dubroy, 2012/03/16 09:01:28]

Done.

-  if (command_line_->HasSwitch(switches::kEnableSyncTabs) &&
-      !command_line_->HasSwitch(switches::kDisableSyncTabs)) {
+  if (!command_line_->HasSwitch(switches::kDisableSyncTabs)) {
     pss->RegisterDataTypeController(
         new SessionDataTypeController(this, profile_, pss));
   }