SF: Identify layers with buffers when dumping offscreen list

Test: adb shell su root dumpsys SurfaceFlinger
Bug: 238781169
Change-Id: I6b1d051fedc5883df814fe5edc8aaa766cbd06f8
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index d53f0b1..f4006a6 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -1472,8 +1472,9 @@
     mFrameTracker.getStats(outStats);
 }
 
-void Layer::dumpCallingUidPid(std::string& result) const {
-    StringAppendF(&result, "Layer %s (%s) ownerPid:%d ownerUid:%d\n", getName().c_str(), getType(),
+void Layer::dumpOffscreenDebugInfo(std::string& result) const {
+    std::string hasBuffer = hasBufferOrSidebandStream() ? " (contains buffer)" : "";
+    StringAppendF(&result, "Layer %s%s pid:%d uid:%d\n", getName().c_str(), hasBuffer.c_str(),
                   mOwnerPid, mOwnerUid);
 }