base: Remove the string logging from CHECK().

chromeos/dbus/shill_device_client.cc

Index: chromeos/dbus/shill_device_client.cc
diff --git a/chromeos/dbus/shill_device_client.cc b/chromeos/dbus/shill_device_client.cc
index 12be94df293fb7312ac793c1a0cbeda4d25f694d..12fb9f13254052311223c744172083272a9059a0 100644
--- a/chromeos/dbus/shill_device_client.cc
+++ b/chromeos/dbus/shill_device_client.cc
@@ -36,7 +36,8 @@ class ShillDeviceClientImpl : public ShillDeviceClient {
       // seem to imply that it does happen sometimes.  Adding CHECKs here
       // so we can determine more accurately where the problem lies.
       // See: http://crbug.com/170541
-      CHECK(iter->second) << "NULL Helper found in helper list.";
+      // NULL Helper found in helper list.
+      CHECK(iter->second);
       delete iter->second;
     }
     helpers_.clear();
@@ -266,7 +267,8 @@ class ShillDeviceClientImpl : public ShillDeviceClient {
   ShillClientHelper* GetHelper(const dbus::ObjectPath& device_path) {
     HelperMap::iterator it = helpers_.find(device_path.value());
     if (it != helpers_.end()) {
-      CHECK(it->second) << "Found a NULL helper in the list.";
+      // Found a NULL helper in the list.
+      CHECK(it->second);
       return it->second;
     }
 
@@ -274,7 +276,8 @@ class ShillDeviceClientImpl : public ShillDeviceClient {
     dbus::ObjectProxy* object_proxy =
         bus_->GetObjectProxy(shill::kFlimflamServiceName, device_path);
     ShillClientHelper* helper = new ShillClientHelper(object_proxy);
-    CHECK(helper) << "Unable to create Shill client helper.";
+    // Unable to create Shill client helper.
+    CHECK(helper);
     helper->MonitorPropertyChanged(shill::kFlimflamDeviceInterface);
     helpers_.insert(HelperMap::value_type(device_path.value(), helper));
     return helper;