Eliminate //chrome dependencies from MetricsServicesManager

chrome/browser/metrics/metrics_services_manager_client.h

+// Copyright 2015 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 CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_CLIENT_H_
+#define CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_CLIENT_H_
+
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/threading/thread_checker.h"
+
+namespace metrics {
+class MetricsService;
+class MetricsServiceClient;
+}
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+namespace rappor {
+class RapporService;
+}
+
+namespace variations {
+class VariationsService;
+}
+
+// MetricsServicesManagerClient is an interface that allows
+// MetricsServicesManager to interact with its embedder.
+class MetricsServicesManagerClient {
+ public:
+  virtual ~MetricsServicesManagerClient() {}
+
+  // Methods that create the various services in the context of the embedder.
+  virtual scoped_ptr<rappor::RapporService> CreateRapporService() = 0;
+  virtual scoped_ptr<variations::VariationsService>
+  CreateVariationsService() = 0;
+  virtual scoped_ptr<metrics::MetricsServiceClient>
+  CreateMetricsServiceClient() = 0;
+
+  // Returns the URL request context in which the metrics services should
+  // operate.
+  virtual net::URLRequestContextGetter* GetURLRequestContext() = 0;
+
+  // Returns whether safe browsing is enabled. If relevant in the embedder's
+  // context, |on_update_callback| will be set up to be called when the state of
+  // safe browsing changes. |on_update_callback| is guaranteed to be valid for
+  // the lifetime of this client instance, but should not be used beyond this
+  // instance being destroyed.
+  virtual bool IsSafeBrowsingEnabled(
+      const base::Closure& on_update_callback) = 0;
+
+  // Returns whether metrics reporting is enabled.
+  virtual bool IsMetricsReportingEnabled() = 0;
+
+  // Whether the metrics services should record but not report metrics.
+  virtual bool OnlyDoMetricsRecording() = 0;
+};
+
+#endif  // CHROME_BROWSER_METRICS_METRICS_SERVICES_MANAGER_CLIENT_H_