Update components for new prefs location.

components/variations/caching_permuted_entropy_provider_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 "components/variations/caching_permuted_entropy_provider.h"
 
 #include <stddef.h>
 
 #include <string>
 
 #include "base/macros.h"
-#include "base/prefs/testing_pref_service.h"
+#include "components/prefs/testing_pref_service.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace metrics {
 
 // Size of the low entropy source to use for the permuted entropy provider
 // in tests.
 const size_t kMaxLowEntropySize = 8000;
 
 // Field trial names used in unit tests.
 const char* const kTestTrialNames[] = {"TestTrial", "AnotherTestTrial",
@@ skipping 22 matching lines @@
       &prefs, kEntropyValue, kMaxLowEntropySize);
   for (size_t i = 0; i < 2 * arraysize(kTestTrialNames); ++i) {
     const std::string trial_name =
         kTestTrialNames[i % arraysize(kTestTrialNames)];
     EXPECT_DOUBLE_EQ(provider.GetEntropyForTrial(trial_name, 0),
                      cached_provider.GetEntropyForTrial(trial_name, 0));
   }
 }
 
 }  // namespace metrics