Create MetricsPrivateDelegate for metricsPrivate behavior

extensions/browser/api/metrics_private/metrics_private_delegate.h

Index: extensions/browser/api/metrics_private/metrics_private_delegate.h
diff --git a/extensions/browser/api/metrics_private/metrics_private_delegate.h b/extensions/browser/api/metrics_private/metrics_private_delegate.h
new file mode 100644
index 0000000000000000000000000000000000000000..1f515831f2cd29f8f794e0a412728a6bbddd5cd9
--- /dev/null
+++ b/extensions/browser/api/metrics_private/metrics_private_delegate.h
@@ -0,0 +1,21 @@
+// 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_