Constructor without callback added to ProfilerMetricsProvider.

components/metrics/profiler/profiler_metrics_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/metrics/profiler/profiler_metrics_provider.h"
 
 #include "base/bind.h"
 #include "base/tracked_objects.h"
 #include "components/metrics/metrics_hashes.h"
 #include "content/public/common/process_type.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using tracked_objects::ProcessDataSnapshot;
 using tracked_objects::TaskSnapshot;
 
 namespace metrics {
 
-  void MockIsCellular(bool* is_cellular_out) {
-    *is_cellular_out = false;
-  }
-
 TEST(ProfilerMetricsProviderTest, RecordData) {
   // WARNING: If you broke the below check, you've modified how
   // HashMetricName works. Please also modify all server-side code that
   // relies on the existing way of hashing.
   EXPECT_EQ(GG_UINT64_C(1518842999910132863), HashMetricName("birth_thread*"));
 
-  ProfilerMetricsProvider profiler_metrics_provider(base::Bind(MockIsCellular));
+  ProfilerMetricsProvider profiler_metrics_provider;
 
   {
     // Add data from the browser process.
     ProcessDataSnapshot process_data;
     process_data.process_id = 177;
     process_data.tasks.push_back(TaskSnapshot());
     process_data.tasks.back().birth.location.file_name = "a/b/file.h";
     process_data.tasks.back().birth.location.function_name = "function";
     process_data.tasks.back().birth.location.line_number = 1337;
     process_data.tasks.back().birth.thread_name = "birth_thread";
@@ skipping 140 matching lines @@
     EXPECT_EQ(109, tracked_object->queue_time_total());
     EXPECT_EQ(104, tracked_object->queue_time_sampled());
     EXPECT_EQ(HashMetricName(""),
               tracked_object->exec_thread_name_hash());
     EXPECT_EQ(ProfilerEventProto::TrackedObject::RENDERER,
               tracked_object->process_type());
   }
 }
 
 }  // namespace metrics