Revert "SF: Update metadata of unvisible layers to backend"

This reverts commit 8eb8f35c8d45282e480426bc26543acf31230cb8.

Reason for revert: b/341389467#comment3

Change-Id: I318d6b3d324be0bfa400e2759b22f1bdbc91e9ed
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
index f10bb33..caeb575 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.cpp
@@ -313,21 +313,6 @@
     }
 }
 
-void updateMetadataAndGameMode(LayerSnapshot& snapshot, const RequestedLayerState& requested,
-                               const LayerSnapshotBuilder::Args& args,
-                               const LayerSnapshot& parentSnapshot) {
-    if (snapshot.changes.test(RequestedLayerState::Changes::GameMode)) {
-        snapshot.gameMode = requested.metadata.has(gui::METADATA_GAME_MODE)
-                ? requested.gameMode
-                : parentSnapshot.gameMode;
-    }
-    updateMetadata(snapshot, requested, args);
-    if (args.includeMetadata) {
-        snapshot.layerMetadata = parentSnapshot.layerMetadata;
-        snapshot.layerMetadata.merge(requested.metadata);
-    }
-}
-
 void clearChanges(LayerSnapshot& snapshot) {
     snapshot.changes.clear();
     snapshot.clientChanges = 0;
@@ -761,11 +746,6 @@
                                  RequestedLayerState::Changes::Input)) {
             updateInput(snapshot, requested, parentSnapshot, path, args);
         }
-        if (forceUpdate ||
-            (args.includeMetadata &&
-             snapshot.changes.test(RequestedLayerState::Changes::Metadata))) {
-            updateMetadataAndGameMode(snapshot, requested, args, parentSnapshot);
-        }
         return;
     }
 
@@ -806,7 +786,16 @@
     }
 
     if (forceUpdate || snapshot.changes.test(RequestedLayerState::Changes::Metadata)) {
-        updateMetadataAndGameMode(snapshot, requested, args, parentSnapshot);
+        if (snapshot.changes.test(RequestedLayerState::Changes::GameMode)) {
+            snapshot.gameMode = requested.metadata.has(gui::METADATA_GAME_MODE)
+                    ? requested.gameMode
+                    : parentSnapshot.gameMode;
+        }
+        updateMetadata(snapshot, requested, args);
+        if (args.includeMetadata) {
+            snapshot.layerMetadata = parentSnapshot.layerMetadata;
+            snapshot.layerMetadata.merge(requested.metadata);
+        }
     }
 
     if (forceUpdate || snapshot.clientChanges & layer_state_t::eFixedTransformHintChanged ||
@@ -1175,15 +1164,6 @@
     }
 }
 
-void LayerSnapshotBuilder::forEachSnapshot(const Visitor& visitor,
-                                           const ConstPredicate& predicate) {
-    for (int i = 0; i < mNumInterestingSnapshots; i++) {
-        std::unique_ptr<LayerSnapshot>& snapshot = mSnapshots.at((size_t)i);
-        if (!predicate(*snapshot)) continue;
-        visitor(snapshot);
-    }
-}
-
 void LayerSnapshotBuilder::forEachInputSnapshot(const ConstVisitor& visitor) const {
     for (int i = mNumInterestingSnapshots - 1; i >= 0; i--) {
         LayerSnapshot& snapshot = *mSnapshots[(size_t)i];
diff --git a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
index dbbad76..1cec018 100644
--- a/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
+++ b/services/surfaceflinger/FrontEnd/LayerSnapshotBuilder.h
@@ -86,11 +86,6 @@
     // Visit each visible snapshot in z-order and move the snapshot if needed
     void forEachVisibleSnapshot(const Visitor& visitor);
 
-    typedef std::function<bool(const LayerSnapshot& snapshot)> ConstPredicate;
-    // Visit each snapshot that satisfies the predicate and move the snapshot if needed with visible
-    // snapshots in z-order
-    void forEachSnapshot(const Visitor& visitor, const ConstPredicate& predicate);
-
     // Visit each snapshot interesting to input reverse z-order
     void forEachInputSnapshot(const ConstVisitor& visitor) const;
 
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index f0c7ff0..33dbab0 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -9233,9 +9233,7 @@
     std::vector<std::pair<Layer*, LayerFE*>> layers;
     if (mLayerLifecycleManagerEnabled) {
         nsecs_t currentTime = systemTime();
-        const bool needsMetadata = mCompositionEngine->getFeatureFlags().test(
-                compositionengine::Feature::kSnapshotLayerMetadata);
-        mLayerSnapshotBuilder.forEachSnapshot(
+        mLayerSnapshotBuilder.forEachVisibleSnapshot(
                 [&](std::unique_ptr<frontend::LayerSnapshot>& snapshot) FTL_FAKE_GUARD(
                         kMainThreadContext) {
                     if (cursorOnly &&
@@ -9258,12 +9256,6 @@
                     layerFE->mSnapshot = std::move(snapshot);
                     refreshArgs.layers.push_back(layerFE);
                     layers.emplace_back(legacyLayer.get(), layerFE.get());
-                },
-                [needsMetadata](const frontend::LayerSnapshot& snapshot) {
-                    return snapshot.isVisible ||
-                            (needsMetadata &&
-                             snapshot.changes.test(
-                                     frontend::RequestedLayerState::Changes::Metadata));
                 });
     }
     if (!mLayerLifecycleManagerEnabled) {
diff --git a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
index 0011c12..5ff6417 100644
--- a/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
+++ b/services/surfaceflinger/tests/unittests/LayerSnapshotTest.cpp
@@ -329,55 +329,6 @@
     EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_CALLING_UID, -1), 789);
 }
 
-TEST_F(LayerSnapshotTest, UpdateMetadataOfHiddenLayers) {
-    hideLayer(1);
-
-    std::vector<TransactionState> transactions;
-    transactions.emplace_back();
-    transactions.back().states.push_back({});
-    transactions.back().states.front().state.what = layer_state_t::eMetadataChanged;
-    // This test focuses on metadata used by ARC++ to ensure LayerMetadata is updated correctly,
-    // and not using stale data.
-    transactions.back().states.front().state.metadata = LayerMetadata();
-    transactions.back().states.front().state.metadata.setInt32(METADATA_OWNER_UID, 123);
-    transactions.back().states.front().state.metadata.setInt32(METADATA_WINDOW_TYPE, 234);
-    transactions.back().states.front().state.metadata.setInt32(METADATA_TASK_ID, 345);
-    transactions.back().states.front().state.metadata.setInt32(METADATA_MOUSE_CURSOR, 456);
-    transactions.back().states.front().state.metadata.setInt32(METADATA_ACCESSIBILITY_ID, 567);
-    transactions.back().states.front().state.metadata.setInt32(METADATA_OWNER_PID, 678);
-    transactions.back().states.front().state.metadata.setInt32(METADATA_CALLING_UID, 789);
-
-    transactions.back().states.front().layerId = 1;
-    transactions.back().states.front().state.layerId = static_cast<int32_t>(1);
-
-    mLifecycleManager.applyTransactions(transactions);
-    EXPECT_EQ(mLifecycleManager.getGlobalChanges(),
-              RequestedLayerState::Changes::Metadata | RequestedLayerState::Changes::Visibility |
-                      RequestedLayerState::Changes::VisibleRegion |
-                      RequestedLayerState::Changes::AffectsChildren);
-
-    // Setting includeMetadata=true to ensure metadata update is applied to LayerSnapshot
-    LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),
-                                    .layerLifecycleManager = mLifecycleManager,
-                                    .includeMetadata = true,
-                                    .displays = mFrontEndDisplayInfos,
-                                    .globalShadowSettings = globalShadowSettings,
-                                    .supportsBlur = true,
-                                    .supportedLayerGenericMetadata = {},
-                                    .genericLayerMetadataKeyMap = {}};
-    update(mSnapshotBuilder, args);
-
-    EXPECT_EQ(static_cast<int64_t>(getSnapshot(1)->clientChanges),
-              layer_state_t::eMetadataChanged | layer_state_t::eFlagsChanged);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_OWNER_UID, -1), 123);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_WINDOW_TYPE, -1), 234);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_TASK_ID, -1), 345);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_MOUSE_CURSOR, -1), 456);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_ACCESSIBILITY_ID, -1), 567);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_OWNER_PID, -1), 678);
-    EXPECT_EQ(getSnapshot(1)->layerMetadata.getInt32(METADATA_CALLING_UID, -1), 789);
-}
-
 TEST_F(LayerSnapshotTest, NoLayerVoteForParentWithChildVotes) {
     // ROOT
     // ├── 1
@@ -1374,17 +1325,6 @@
     EXPECT_TRUE(foundInputLayer);
 }
 
-TEST_F(LayerSnapshotTest, ForEachSnapshotsWithPredicate) {
-    std::vector<uint32_t> visitedUniqueSequences;
-    mSnapshotBuilder.forEachSnapshot(
-            [&](const std::unique_ptr<frontend::LayerSnapshot>& snapshot) {
-                visitedUniqueSequences.push_back(snapshot->uniqueSequence);
-            },
-            [](const frontend::LayerSnapshot& snapshot) { return snapshot.uniqueSequence == 111; });
-    EXPECT_EQ(visitedUniqueSequences.size(), 1u);
-    EXPECT_EQ(visitedUniqueSequences[0], 111u);
-}
-
 TEST_F(LayerSnapshotTest, canOccludePresentation) {
     setFlags(12, layer_state_t::eCanOccludePresentation, layer_state_t::eCanOccludePresentation);
     LayerSnapshotBuilder::Args args{.root = mHierarchyBuilder.getHierarchy(),