[sync] Abstract most ProfileSyncService //chrome deps

chrome/browser/sync/profile_sync_service.h

Index: chrome/browser/sync/profile_sync_service.h
diff --git a/chrome/browser/sync/profile_sync_service.h b/chrome/browser/sync/profile_sync_service.h
index 7f54089b35498eb46c77ab49d294065212055b45..2f4a183659a13696a1c34977b8adb8af2e49237b 100644
--- a/chrome/browser/sync/profile_sync_service.h
+++ b/chrome/browser/sync/profile_sync_service.h
@@ -19,6 +19,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
+#include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/sync/glue/sync_backend_host.h"
@@ -39,6 +40,7 @@
 #include "components/sync_driver/sync_prefs.h"
 #include "components/sync_driver/sync_service.h"
 #include "components/sync_driver/sync_stopped_reporter.h"
+#include "components/version_info/version_info.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "google_apis/gaia/google_service_auth_error.h"
@@ -237,7 +239,14 @@ class ProfileSyncService : public sync_driver::SyncService,
       scoped_ptr<SigninManagerWrapper> signin_wrapper,
       ProfileOAuth2TokenService* oauth2_token_service,
       browser_sync::ProfileSyncServiceStartBehavior start_behavior,
-      const syncer::NetworkTimeUpdateCallback& network_time_update_callback);
+      const syncer::NetworkTimeUpdateCallback& network_time_update_callback,
+      base::FilePath base_directory,
+      net::URLRequestContextGetter* url_request_context,
+      std::string debug_identifier,
+      version_info::Channel channel,
+      scoped_refptr<base::SingleThreadTaskRunner> db_thread,
+      scoped_refptr<base::SingleThreadTaskRunner> file_thread,
+      base::SequencedWorkerPool* blocking_pool);
   ~ProfileSyncService() override;
 
   // Initializes the object. This must be called at most once, and
@@ -782,9 +791,6 @@ class ProfileSyncService : public sync_driver::SyncService,
   // the Sync API component factory.
   scoped_ptr<sync_driver::SyncClient> sync_client_;
 
-  // The profile whose data we are synchronizing.
-  Profile* profile_;
-
   // The class that handles getting, setting, and persisting sync
   // preferences.
   sync_driver::SyncPrefs sync_prefs_;
@@ -801,6 +807,24 @@ class ProfileSyncService : public sync_driver::SyncService,
   // Callback to update the network time; used for initializing the backend.
   syncer::NetworkTimeUpdateCallback network_time_update_callback_;
 
+  // The path to the base directory under which sync should store its
+  // information.
+  base::FilePath base_directory_;
+
+  // The request context in which sync should operate.
+  net::URLRequestContextGetter* url_request_context_;
+
+  // An identifier representing this instance for debugging purposes.
+  std::string debug_identifier_;
+
+  // The product channel of the embedder.
+  version_info::Channel channel_;
+
+  // Threading context.
+  scoped_refptr<base::SingleThreadTaskRunner> db_thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> file_thread_;
+  base::SequencedWorkerPool* blocking_pool_;
+
   // Indicates if this is the first time sync is being configured.  This value
   // is equal to !HasSyncSetupCompleted() at the time of OnBackendInitialized().
   bool is_first_time_sync_configure_;
@@ -974,6 +998,10 @@ class ProfileSyncService : public sync_driver::SyncService,
 
   content::NotificationRegistrar registrar_;
 
+  // Used to ensure that certain operations are performed on the thread that
+  // this object was created on.
+  base::ThreadChecker thread_checker_;
+
   base::WeakPtrFactory<ProfileSyncService> weak_factory_;
 
   // We don't use |weak_factory_| for the StartupController because the weak