Refactor how layer metadata for use by VR is propagated
from WindowManager based on feedback in frameworks/base.

Since windowType and ownerUid are immutable, they are sent
on creation instead of separate IPC.

Bug: 30984984
Test: built locally

Change-Id: I380b3cdcf6aec471fc23f1e27846ab80492e8add
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 8cc8e31..a29c584 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2600,9 +2600,6 @@
             // We don't trigger a traversal here because if no other state is
             // changed, we don't want this to cause any more work
         }
-        if (what & layer_state_t::eLayerInfoChanged) {
-          layer->setInfo(s.type, s.appid);
-        }
     }
     return flags;
 }
@@ -2611,8 +2608,8 @@
         const String8& name,
         const sp<Client>& client,
         uint32_t w, uint32_t h, PixelFormat format, uint32_t flags,
-        sp<IBinder>* handle, sp<IGraphicBufferProducer>* gbp,
-        sp<Layer>* parent)
+        uint32_t windowType, uint32_t ownerUid, sp<IBinder>* handle,
+        sp<IGraphicBufferProducer>* gbp, sp<Layer>* parent)
 {
     if (int32_t(w|h) < 0) {
         ALOGE("createLayer() failed, w or h is negative (w=%d, h=%d)",
@@ -2644,6 +2641,8 @@
         return result;
     }
 
+    layer->setInfo(windowType, ownerUid);
+
     result = addClientLayer(client, *handle, *gbp, layer, *parent);
     if (result != NO_ERROR) {
         return result;