sync: Re-implement getAllNodes WebUI function

sync/sessions/model_type_registry.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_MODEL_TYPE_REGISTRY_H_
 #define SYNC_ENGINE_MODEL_TYPE_REGISTRY_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "sync/base/sync_export.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 
 namespace syncer {
 
 namespace syncable {
 class Directory;
 }  // namespace syncable
 
 class CommitContributor;
 class DirectoryCommitContributor;
 class DirectoryUpdateHandler;
+class DirectoryTypeDebugInfoEmitter;
 class NonBlockingTypeProcessorCore;
 class NonBlockingTypeProcessor;
 class UpdateHandler;
 
 typedef std::map<ModelType, UpdateHandler*> UpdateHandlerMap;
 typedef std::map<ModelType, CommitContributor*> CommitContributorMap;
+typedef std::map<ModelType, DirectoryTypeDebugInfoEmitter*>
+    DirectoryTypeDebugInfoEmitterMap;
 
 // Keeps track of the sets of active update handlers and commit contributors.
 class SYNC_EXPORT_PRIVATE ModelTypeRegistry {
  public:
   // This alternative constructor does not support any directory types.
   // It is used only in tests.
   ModelTypeRegistry();
 
   // Constructs a ModelTypeRegistry that supports directory types.
   ModelTypeRegistry(
@@ skipping 18 matching lines @@
   // Expects that the type is currently enabled.
   // Deletes the processor core associated with the type.
   void RemoveNonBlockingType(syncer::ModelType type);
 
   // Gets the set of enabled types.
   ModelTypeSet GetEnabledTypes() const;
 
   // Simple getters.
   UpdateHandlerMap* update_handler_map();
   CommitContributorMap* commit_contributor_map();
+  DirectoryTypeDebugInfoEmitterMap* directory_type_debug_info_emitter_map();
 
  private:
   ModelTypeSet GetEnabledNonBlockingTypes() const;
   ModelTypeSet GetEnabledDirectoryTypes() const;
 
   // Sets of handlers and contributors.
   ScopedVector<DirectoryCommitContributor> directory_commit_contributors_;
   ScopedVector<DirectoryUpdateHandler> directory_update_handlers_;
+  ScopedVector<DirectoryTypeDebugInfoEmitter>
+      directory_type_debug_info_emitters_;
+
   ScopedVector<NonBlockingTypeProcessorCore> non_blocking_type_processor_cores_;
 
   // Maps of UpdateHandlers and CommitContributors.
   // They do not own any of the objects they point to.
   UpdateHandlerMap update_handler_map_;
   CommitContributorMap commit_contributor_map_;
 
+  // Map of DebugInfoEmitters for directory types.
+  // Non-blocking types handle debug info differently.
+  // Does not own its contents.
+  DirectoryTypeDebugInfoEmitterMap directory_type_debug_info_emitter_map_;
+
   // The known ModelSafeWorkers.
   std::map<ModelSafeGroup, scoped_refptr<ModelSafeWorker> > workers_map_;
 
   // The directory.  Not owned.
   syncable::Directory* directory_;
 
   // The set of enabled directory types.
   ModelTypeSet enabled_directory_types_;
 
   DISALLOW_COPY_AND_ASSIGN(ModelTypeRegistry);
 };
 
 }  // namespace syncer
 
 #endif // SYNC_ENGINE_MODEL_TYPE_REGISTRY_H_