GCM Engine: Split up reg/unreg UNKNOWN_ERROR to improve metrics

google_apis/gcm/engine/unregistration_request_unittest.cc

 // Copyright 2014 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 <stdint.h>
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 179 matching lines @@
   CreateRequest();
   request_->Start();
 
   SetResponse(net::HTTP_OK, "Error=INVALID_PARAMETERS");
   CompleteFetch();
 
   EXPECT_TRUE(callback_called_);
   EXPECT_EQ(UnregistrationRequest::INVALID_PARAMETERS, status_);
 }
 
+TEST_F(GCMUnregistrationRequestTest, DeviceRegistrationError) {
+  CreateRequest();
+  request_->Start();
+
+  SetResponse(net::HTTP_OK, "Error=PHONE_REGISTRATION_ERROR");
+  CompleteFetch();
+
+  EXPECT_TRUE(callback_called_);
+  EXPECT_EQ(UnregistrationRequest::DEVICE_REGISTRATION_ERROR, status_);
+}
+
 TEST_F(GCMUnregistrationRequestTest, UnkwnownError) {
   CreateRequest();
   request_->Start();
 
   SetResponse(net::HTTP_OK, "Error=XXX");
   CompleteFetch();
 
   EXPECT_TRUE(callback_called_);
   EXPECT_EQ(UnregistrationRequest::UNKNOWN_ERROR, status_);
 }
@@ skipping 235 matching lines @@
   request_->Start();
 
   SetResponse(net::HTTP_OK, "Error=XXX");
   CompleteFetch();
 
   EXPECT_TRUE(callback_called_);
   EXPECT_EQ(UnregistrationRequest::UNKNOWN_ERROR, status_);
 }
 
 }  // namespace gcm