Prepare to call GMS APIs from WebView

android_webview/browser/aw_metrics_service_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 ANDROID_WEBVIEW_BROWSER_AW_METRICS_SERVICE_CLIENT_IMPL_H_
 #define ANDROID_WEBVIEW_BROWSER_AW_METRICS_SERVICE_CLIENT_IMPL_H_
 
-#include <memory>
-#include <string>
-
-#include "android_webview/browser/aw_metrics_service_client.h"
-#include "base/lazy_instance.h"
-#include "base/macros.h"
 #include "components/metrics/enabled_state_provider.h"
 #include "components/metrics/metrics_service_client.h"
 
 class PrefService;
 
 namespace base {
 class FilePath;
 }
 
-namespace metrics {
-class MetricsStateManager;
-}
-
 namespace net {
 class URLRequestContextGetter;
 }
 
 namespace android_webview {
 
-// This singleton manages metrics for an app using any number of WebViews. The
-// homonymous Java class is responsible for turning metrics on and off. This
-// singleton must always be used on the same thread. (Currently the UI thread
-// is enforced, but it could be any thread.) This is to prevent enable/disable
-// race conditions, and because MetricsService is single-threaded.
-// Initialization is asynchronous; even after Initialize has returned, some
-// methods may not be ready to use (see below).
 class AwMetricsServiceClient : public metrics::MetricsServiceClient,
                                public metrics::EnabledStateProvider {
-  friend struct base::DefaultLazyInstanceTraits<AwMetricsServiceClient>;
+ public:
+  static AwMetricsServiceClient* GetInstance();
+  virtual void Initialize(PrefService* pref_service,
+                          net::URLRequestContextGetter* request_context,
+                          const base::FilePath guid_file_path) = 0;
 
- public:
-  // These may be called at any time.
-  static AwMetricsServiceClient* GetInstance();
-  void Initialize(PrefService* pref_service,
-                  net::URLRequestContextGetter* request_context,
-                  const base::FilePath guid_file_path);
-  void SetMetricsEnabled(bool enabled);
-
-  // metrics::EnabledStateProvider:
-  bool IsConsentGiven() override;
-
-  // These implement metrics::MetricsServiceClient. They must not be called
-  // until initialization has asynchronously finished.
-  metrics::MetricsService* GetMetricsService() override;
-  void SetMetricsClientId(const std::string& client_id) override;
-  int32_t GetProduct() override;
-  std::string GetApplicationLocale() override;
-  bool GetBrand(std::string* brand_code) override;
-  metrics::SystemProfileProto::Channel GetChannel() override;
-  std::string GetVersionString() override;
-  void InitializeSystemProfileMetrics(
-      const base::Closure& done_callback) override;
-  void CollectFinalMetricsForLog(const base::Closure& done_callback) override;
-  std::unique_ptr<metrics::MetricsLogUploader> CreateUploader(
-      const std::string& server_url,
-      const std::string& mime_type,
-      const base::Callback<void(int)>& on_upload_complete) override;
-  base::TimeDelta GetStandardUploadInterval() override;
-
- private:
+ protected:
   AwMetricsServiceClient();
   ~AwMetricsServiceClient() override;
 
-  void InitializeWithGUID(std::string* guid);
-
-  bool is_initialized_;
-  bool is_enabled_;
-  PrefService* pref_service_;
-  net::URLRequestContextGetter* request_context_;
-  std::unique_ptr<metrics::MetricsStateManager> metrics_state_manager_;
-  std::unique_ptr<metrics::MetricsService> metrics_service_;
-
+ private:
   DISALLOW_COPY_AND_ASSIGN(AwMetricsServiceClient);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_AW_METRICS_SERVICE_CLIENT_IMPL_H_