diff --git a/services/surfaceflinger/FrontEnd/LayerHierarchy.h b/services/surfaceflinger/FrontEnd/LayerHierarchy.h
index 3dd89ba..b25b731 100644
--- a/services/surfaceflinger/FrontEnd/LayerHierarchy.h
+++ b/services/surfaceflinger/FrontEnd/LayerHierarchy.h
@@ -104,6 +104,16 @@
         static const TraversalPath ROOT;
     };
 
+    struct TraversalPathHash {
+        std::size_t operator()(const LayerHierarchy::TraversalPath& key) const {
+            uint32_t hashCode = key.id * 31;
+            if (key.mirrorRootId != UNASSIGNED_LAYER_ID) {
+                hashCode += key.mirrorRootId * 31;
+            }
+            return std::hash<size_t>{}(hashCode);
+        }
+    };
+
     // Helper class to add nodes to an existing traversal id and removes the
     // node when it goes out of scope.
     class ScopedAddToTraversalPath {
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
index 8a45093..5e7c259 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshot.cpp
@@ -28,9 +28,14 @@
                              const LayerHierarchy::TraversalPath& path)
       : path(path) {
     static uint32_t sUniqueSequenceId = 0;
-    // Provide a unique id for clones otherwise keeping using the sequence id.
-    // The seq id can still be useful for debugging if its available.
-    uniqueSequence = (path.isClone()) ? sUniqueSequenceId++ : state.id;
+    // Provide a unique id for all snapshots.
+    // A front end layer can generate multiple snapshots if its mirrored.
+    // Additionally, if the layer is not reachable, we may choose to destroy
+    // and recreate the snapshot in which case the unique sequence id will
+    // change. The consumer shouldn't tie any lifetimes to this unique id but
+    // register a LayerLifecycleManager::ILifecycleListener or get a list of
+    // destroyed layers from LayerLifecycleManager.
+    uniqueSequence = sUniqueSequenceId++;
     sequence = static_cast<int32_t>(state.id);
     name = state.name;
     textureName = state.textureName;
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
index 3997a0a..7b1ff27 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
@@ -68,6 +68,7 @@
     void update(const Args&);
     std::vector<std::unique_ptr<LayerSnapshot>>& getSnapshots();
     LayerSnapshot* getSnapshot(uint32_t layerId) const;
+    LayerSnapshot* getSnapshot(const LayerHierarchy::TraversalPath& id) const;
 
     typedef std::function<void(const LayerSnapshot& snapshot)> ConstVisitor;
 
@@ -86,7 +87,6 @@
 
 private:
     friend class LayerSnapshotTest;
-    LayerSnapshot* getSnapshot(const LayerHierarchy::TraversalPath& id) const;
     static LayerSnapshot getRootSnapshot();
 
     // return true if we were able to successfully update the snapshots via
@@ -120,16 +120,8 @@
     void updateChildState(LayerSnapshot& snapshot, const LayerSnapshot& childSnapshot,
                           const Args& args);
 
-    struct TraversalPathHash {
-        std::size_t operator()(const LayerHierarchy::TraversalPath& key) const {
-            uint32_t hashCode = key.id * 31;
-            if (key.mirrorRootId != UNASSIGNED_LAYER_ID) {
-                hashCode += key.mirrorRootId * 31;
-            }
-            return std::hash<size_t>{}(hashCode);
-        }
-    };
-    std::unordered_map<LayerHierarchy::TraversalPath, LayerSnapshot*, TraversalPathHash>
+    std::unordered_map<LayerHierarchy::TraversalPath, LayerSnapshot*,
+                       LayerHierarchy::TraversalPathHash>
             mIdToSnapshot;
     std::vector<std::unique_ptr<LayerSnapshot>> mSnapshots;
     LayerSnapshot mRootSnapshot;