FTL: Pull Flags into namespace

Bug: 185536303
Test: Build
Change-Id: Ia9aafc78565414815dfc14732ce85b06fa96e17b
diff --git a/services/surfaceflinger/Tracing/TransactionProtoParser.cpp b/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
index d249b60..a73eccf 100644
--- a/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
+++ b/services/surfaceflinger/Tracing/TransactionProtoParser.cpp
@@ -429,7 +429,7 @@
                                                   bufferProto.height(), bufferProto.pixel_format(),
                                                   bufferProto.usage()));
         layer.bufferData->frameNumber = bufferProto.frame_number();
-        layer.bufferData->flags = Flags<BufferData::BufferDataChange>(bufferProto.flags());
+        layer.bufferData->flags = ftl::Flags<BufferData::BufferDataChange>(bufferProto.flags());
         layer.bufferData->cachedBuffer.id = bufferProto.cached_buffer_id();
         layer.bufferData->acquireFence = Fence::NO_FENCE;
     }