sync: Expose DirectoryDebugInfoEmitters in engine

sync/engine/directory_commit_contribution.h

 // Copyright 2014 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 SYNC_ENGINE_DIRECTORY_COMMIT_CONTRIBUTION_H_
 #define SYNC_ENGINE_DIRECTORY_COMMIT_CONTRIBUTION_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "sync/base/sync_export.h"
 #include "sync/engine/commit_contribution.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/util/syncer_error.h"
 #include "sync/protocol/sync.pb.h"
+#include "sync/sessions/directory_type_debug_info_emitter.h"
 #include "sync/sessions/status_controller.h"
 
 namespace syncer {
 
 namespace sessions {
 class StatusController;
 }  // namespace sessions
 
 namespace syncable {
 class Directory;
@@ skipping 13 matching lines @@
 
   // Build a CommitContribution from the IS_UNSYNCED items in |dir| with the
   // given |type|.  The contribution will include at most |max_items| entries.
   //
   // This function may return NULL if this type has no items ready for and
   // requiring commit.  This function may make model neutral changes to the
   // directory.
   static scoped_ptr<DirectoryCommitContribution> Build(
       syncable::Directory* dir,
       ModelType type,
-      size_t max_items);
+      size_t max_items,
+      DirectoryTypeDebugInfoEmitter* debug_info_emitter);
 
   // Serialize this contribution's entries to the given commit request |msg|.
   //
   // This function is not const.  It will update some state in this contribution
   // that will be used when processing the associated commit response.  This
   // function should not be called more than once.
   virtual void AddToCommitMessage(sync_pb::ClientToServerMessage* msg) OVERRIDE;
 
   // Updates this contribution's contents in accordance with the provided
   // |response|.
@@ skipping 15 matching lines @@
  private:
   class DirectoryCommitContributionTest;
   FRIEND_TEST_ALL_PREFIXES(DirectoryCommitContributionTest, GatherByTypes);
   FRIEND_TEST_ALL_PREFIXES(DirectoryCommitContributionTest,
                            GatherAndTruncate);
 
   DirectoryCommitContribution(
       const std::vector<int64>& metahandles,
       const google::protobuf::RepeatedPtrField<sync_pb::SyncEntity>& entities,
       const sync_pb::DataTypeContext& context,
-      syncable::Directory* directory);
+      syncable::Directory* directory,
+      DirectoryTypeDebugInfoEmitter* debug_info_emitter);
 
   void UnsetSyncingBits();
 
   syncable::Directory* dir_;
   const std::vector<int64> metahandles_;
   const google::protobuf::RepeatedPtrField<sync_pb::SyncEntity> entities_;
   sync_pb::DataTypeContext context_;
   size_t entries_start_index_;
 
   // This flag is tracks whether or not the directory entries associated with
   // this commit still have their SYNCING bits set.  These bits will be set when
   // the CommitContribution is created with Build() and unset when CleanUp() is
   // called.  This flag must be unset by the time our destructor is called.
   bool syncing_bits_set_;
 
+  // A pointer to the commit counters of our parent CommitContributor.
+  DirectoryTypeDebugInfoEmitter* debug_info_emitter_;
+
   DISALLOW_COPY_AND_ASSIGN(DirectoryCommitContribution);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_DIRECTORY_COMMIT_CONTRIBUTION_H_