SF: Use std::string for layer names

Bug: 130554049
Test: Build
Change-Id: Id083a85fcb838da4138c39a55b12cf10ff0cdddb
diff --git a/services/surfaceflinger/RegionSamplingThread.cpp b/services/surfaceflinger/RegionSamplingThread.cpp
index 1c1367c..30027de 100644
--- a/services/surfaceflinger/RegionSamplingThread.cpp
+++ b/services/surfaceflinger/RegionSamplingThread.cpp
@@ -436,7 +436,7 @@
             }
             if (!intersectsAnyArea) return;
 
-            ALOGV("Traversing [%s] [%d, %d, %d, %d]", layer->getName().string(), bounds.left,
+            ALOGV("Traversing [%s] [%d, %d, %d, %d]", layer->getDebugName(), bounds.left,
                   bounds.top, bounds.right, bounds.bottom);
             visitor(layer);
         };