Only show prefer network checkbox for networks stored on user profile.

chrome/browser/chromeos/cros/network_library.cc

Index: chrome/browser/chromeos/cros/network_library.cc
===================================================================
--- chrome/browser/chromeos/cros/network_library.cc	(revision 95328)
+++ chrome/browser/chromeos/cros/network_library.cc	(working copy)
@@ -2676,6 +2676,7 @@
   // virtual EnableOfflineMode implemented in derived classes.
   // virtual GetIPConfigs implemented in derived classes.
   // virtual SetIPConfig implemented in derived classes.
+  virtual void SwitchToPreferredNetwork() OVERRIDE;
 
  protected:
   typedef ObserverList<NetworkObserver> NetworkObserverList;
@@ -3744,6 +3745,27 @@
   CallEnableNetworkDeviceType(TYPE_CELLULAR, enable);
 }
 
+void NetworkLibraryImplBase::SwitchToPreferredNetwork() {
+  // If current network (if any) is not preferred, check network service list to
+  // see if the first not connected network is preferred and set to autoconnect.
+  // If so, connect to it.
+  if (!wifi_enabled() || (active_wifi_ && active_wifi_->preferred()))
+    return;
+  for (WifiNetworkVector::const_iterator it = wifi_networks_.begin();
+      it != wifi_networks_.end(); ++it) {
+    WifiNetwork* wifi = *it;
+    if (wifi->connected() || wifi->connecting())  // Skip connected/connecting.
+      continue;
+    if (!wifi->preferred())  // All preferred networks are sorted in front.
+      break;
+    if (wifi->auto_connect()) {
+      ConnectToWifiNetwork(wifi);
+      break;
+    }
+  }
+}
+
+
 ////////////////////////////////////////////////////////////////////////////
 // Network list management functions.
 
@@ -4964,6 +4986,8 @@
       DCHECK_EQ(value->GetType(), Value::TYPE_STRING);
       value->GetAsString(&active_profile_path_);
       VLOG(1) << "Active Profile: " << active_profile_path_;
+      if (active_profile_path_ != kSharedProfilePath)
+        SwitchToPreferredNetwork();

[stevenjb, 2011/08/03 22:58:26]

We should probably only call this when active_profile_path_ changes, and we
should check on == user instead of != shared, in case we add additional profile
types later.

[Charlie Lee, 2011/08/04 20:43:02]

What's the format of the user profile? It seems like, right now in other places,
we resort to profile type is user if profile string is not shared. So that's
what i'm doing here also.

[stevenjb, 2011/08/04 21:01:15]

Ah, I see, I didn't add a kUserProfilePath[]. We should probably replace
active_profile_path_ with active_profile_type_ and have one piece of code that
parses the path and sets the type, but this is fine for now. If we add any more
profile types we can do the refactoring then.

       break;
     }
     case PROPERTY_INDEX_PROFILES: {