Create MetricsPrivateDelegate for metricsPrivate behavior

extensions/browser/api/metrics_private/metrics_private_delegate.h

+// Copyright 2016 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.
+
+#ifndef EXTENSIONS_BROWSER_API_METRICS_PRIVATE_METRICS_PRIVATE_DELEGATE_H_
+#define EXTENSIONS_BROWSER_API_METRICS_PRIVATE_METRICS_PRIVATE_DELEGATE_H_
+
+namespace extensions {
+
+// Delegate class for embedder-specific functionality of chrome.metricsPrivate.
+class MetricsPrivateDelegate {
+ public:
+  virtual ~MetricsPrivateDelegate() {}
+
+  // Returns whether crash reporting is enabled.
+  virtual bool IsCrashReportingEnabled() = 0;
+};
+
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_API_METRICS_PRIVATE_METRICS_PRIVATE_DELEGATE_H_