Change FieldTrial::State to not use StringPiece members.

base/metrics/field_trial_unittest.cc

 // Copyright (c) 2012 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 "base/metrics/field_trial.h"
 
 #include <stddef.h>
 
 #include "base/base_switches.h"
 #include "base/build_time.h"
@@ skipping 324 matching lines @@
 }
 
 TEST_F(FieldTrialTest, AllGroups) {
   FieldTrial::State field_trial_state;
   std::string one_winner("One Winner");
   scoped_refptr<FieldTrial> trial =
       CreateFieldTrial(one_winner, 10, "Default", NULL);
   std::string winner("Winner");
   trial->AppendGroup(winner, 10);
   EXPECT_TRUE(trial->GetState(&field_trial_state));
-  EXPECT_EQ(one_winner, field_trial_state.trial_name);
-  EXPECT_EQ(winner, field_trial_state.group_name);
+  EXPECT_EQ(one_winner, *field_trial_state.trial_name);
+  EXPECT_EQ(winner, *field_trial_state.group_name);
   trial->group();
   EXPECT_TRUE(trial->GetState(&field_trial_state));
-  EXPECT_EQ(one_winner, field_trial_state.trial_name);
-  EXPECT_EQ(winner, field_trial_state.group_name);
+  EXPECT_EQ(one_winner, *field_trial_state.trial_name);
+  EXPECT_EQ(winner, *field_trial_state.group_name);
 
   std::string multi_group("MultiGroup");
   scoped_refptr<FieldTrial> multi_group_trial =
       CreateFieldTrial(multi_group, 9, "Default", NULL);
 
   multi_group_trial->AppendGroup("Me", 3);
   multi_group_trial->AppendGroup("You", 3);
   multi_group_trial->AppendGroup("Them", 3);
   EXPECT_TRUE(multi_group_trial->GetState(&field_trial_state));
   // Finalize the group selection by accessing the selected group.
   multi_group_trial->group();
   EXPECT_TRUE(multi_group_trial->GetState(&field_trial_state));
-  EXPECT_EQ(multi_group, field_trial_state.trial_name);
-  EXPECT_EQ(multi_group_trial->group_name(), field_trial_state.group_name);
+  EXPECT_EQ(multi_group, *field_trial_state.trial_name);
+  EXPECT_EQ(multi_group_trial->group_name(), *field_trial_state.group_name);
 }
 
 TEST_F(FieldTrialTest, ActiveGroupsNotFinalized) {
   const char kTrialName[] = "TestTrial";
   const char kSecondaryGroupName[] = "SecondaryGroup";
 
   int default_group = -1;
   scoped_refptr<FieldTrial> trial =
       CreateFieldTrial(kTrialName, 100, kDefaultGroupName, &default_group);
   const int secondary_group = trial->AppendGroup(kSecondaryGroupName, 50);
@@ skipping 988 matching lines @@
 
   // Check that the params match.
   std::map<std::string, std::string> shm_params;
   entry->GetParams(&shm_params);
   EXPECT_EQ(2u, shm_params.size());
   EXPECT_EQ("value1", shm_params["key1"]);
   EXPECT_EQ("value2", shm_params["key2"]);
 }
 
 }  // namespace base