Fix ChromeOS-only static initializers from the last 5 months.

chrome/browser/metrics/perf/perf_provider_chromeos.h

Index: chrome/browser/metrics/perf/perf_provider_chromeos.h
diff --git a/chrome/browser/metrics/perf/perf_provider_chromeos.h b/chrome/browser/metrics/perf/perf_provider_chromeos.h
index 6f2c7e744711bc46e61e272bdb378c16cb1af989..68d1cd79b908705679f9fd06e7bda6a73e991dcc 100644
--- a/chrome/browser/metrics/perf/perf_provider_chromeos.h
+++ b/chrome/browser/metrics/perf/perf_provider_chromeos.h
@@ -61,7 +61,7 @@ class PerfProvider : public base::NonThreadSafe,
       }
 
      private:
-      TriggerParams() = default;  // POD
+      TriggerParams() = delete;
 
       // Limit the number of profiles collected.
       int64_t sampling_factor_;
@@ -71,6 +71,8 @@ class PerfProvider : public base::NonThreadSafe,
       TimeDeltaInternalType max_collection_delay_;
     };
 
+    CollectionParams();
+
     CollectionParams(base::TimeDelta collection_duration,
                      base::TimeDelta periodic_interval,
                      TriggerParams resume_from_suspend,
@@ -104,8 +106,6 @@ class PerfProvider : public base::NonThreadSafe,
     }
 
    private:
-    CollectionParams() = default;  // POD
-
     // Time perf is run for.
     TimeDeltaInternalType collection_duration_;
 
@@ -117,6 +117,8 @@ class PerfProvider : public base::NonThreadSafe,
     // Parameters for RESUME_FROM_SUSPEND and RESTORE_SESSION collections:
     TriggerParams resume_from_suspend_;
     TriggerParams restore_session_;
+
+    DISALLOW_COPY_AND_ASSIGN(CollectionParams);
   };
 
   // Parses a PerfDataProto from serialized data |perf_data|, if it exists.
@@ -155,8 +157,6 @@ class PerfProvider : public base::NonThreadSafe,
   }
 
  private:
-  static const CollectionParams kDefaultParameters;
-
   // Class that listens for changes to the login state. When a normal user logs
   // in, it updates PerfProvider to start collecting data.
   class LoginObserver : public chromeos::LoginState::Observer {