[Metrics] Move Windows-specific CountBrowserCrashDumpAttempts() out of MetricsService

BUG=374216
TEST=none
[email protected]

Review URL: https://codereview.chromium.org/296013005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272590 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/metrics/chrome_metrics_service_client.h b/chrome/browser/metrics/chrome_metrics_service_client.h
index 7ed043e..3d1c26b 100644
--- a/chrome/browser/metrics/chrome_metrics_service_client.h
+++ b/chrome/browser/metrics/chrome_metrics_service_client.h
@@ -64,6 +64,12 @@
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+#if defined(OS_WIN)
+  // Counts (and removes) the browser crash dump attempt signals left behind by
+  // any previous browser processes which generated a crash dump.
+  void CountBrowserCrashDumpAttempts();
+#endif  // OS_WIN
+
   base::ThreadChecker thread_checker_;
 
   // The MetricsService that |this| is a client of. Weak pointer.