Add task-id metadata constant

This can be used by alternate front-ends to associate
surfaces with tasks.

Bug: 122925737
Test: phone boots and surfaces still fling
Change-Id: If8e42908e61c4a99d1e53a006c04fe7c036c437d

2 files changed, 3 insertions, 1 deletions

diff --git a/libs/gui/LayerMetadata.cpp b/libs/gui/LayerMetadata.cpp
index c8a2b0754b..745433a605 100644
--- a/libs/gui/LayerMetadata.cpp
+++ b/libs/gui/LayerMetadata.cpp
@@ -105,6 +105,8 @@ std::string LayerMetadata::itemToString(uint32_t key, const char* separator) con
             return StringPrintf("ownerUID%s%d", separator, getInt32(key, 0));
         case METADATA_WINDOW_TYPE:
             return StringPrintf("windowType%s%d", separator, getInt32(key, 0));
+        case METADATA_TASK_ID:
+            return StringPrintf("taskId%s%d", separator, getInt32(key, 0));
         default:
             return StringPrintf("%d%s%dbytes", key, separator,
                                 static_cast<int>(mMap.at(key).size()));
diff --git a/libs/gui/include/gui/LayerMetadata.h b/libs/gui/include/gui/LayerMetadata.h
index 50121817d5..3ae10e461d 100644
--- a/libs/gui/include/gui/LayerMetadata.h
+++ b/libs/gui/include/gui/LayerMetadata.h
@@ -22,7 +22,7 @@
 
 namespace android {
 
-enum { METADATA_OWNER_UID = 1, METADATA_WINDOW_TYPE = 2 };
+enum { METADATA_OWNER_UID = 1, METADATA_WINDOW_TYPE = 2, METADATA_TASK_ID = 3 };
 
 struct LayerMetadata : public Parcelable {
     std::unordered_map<uint32_t, std::vector<uint8_t>> mMap;