Report data usage UMA for Chrome services

sync/test/fake_server/fake_server_http_post_provider.h

Index: sync/test/fake_server/fake_server_http_post_provider.h
diff --git a/sync/test/fake_server/fake_server_http_post_provider.h b/sync/test/fake_server/fake_server_http_post_provider.h
index 593be1d5fcf94f98ce1f23941119cbc51c33a2b0..5ccdf7d62a1ee584e10bb9c5f2c76dff4a6107d8 100644
--- a/sync/test/fake_server/fake_server_http_post_provider.h
+++ b/sync/test/fake_server/fake_server_http_post_provider.h
@@ -7,6 +7,7 @@
 
 #include <string>
 
+#include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/sequenced_task_runner.h"
@@ -70,7 +71,8 @@ class FakeServerHttpPostProviderFactory
   ~FakeServerHttpPostProviderFactory() override;
 
   // HttpPostProviderFactory:
-  void Init(const std::string& user_agent) override;
+  void Init(const std::string& user_agent,
+            const BindToTrackerCallback& bind_to_tracker_callback) override;
   syncer::HttpPostProviderInterface* Create() override;
   void Destroy(syncer::HttpPostProviderInterface* http) override;