diff --git a/include/private/gui/LayerState.h b/include/private/gui/LayerState.h
index 2fa6ff9..cbe8733 100644
--- a/include/private/gui/LayerState.h
+++ b/include/private/gui/LayerState.h
@@ -39,6 +39,7 @@
     enum {
         eLayerHidden        = 0x01,     // SURFACE_HIDDEN in SurfaceControl.java
         eLayerOpaque        = 0x02,     // SURFACE_OPAQUE
+        eLayerSecure        = 0x80,     // SECURE
     };
 
     enum {
@@ -48,10 +49,9 @@
         eAlphaChanged               = 0x00000008,
         eMatrixChanged              = 0x00000010,
         eTransparentRegionChanged   = 0x00000020,
-        eVisibilityChanged          = 0x00000040,
+        eFlagsChanged               = 0x00000040,
         eLayerStackChanged          = 0x00000080,
         eCropChanged                = 0x00000100,
-        eOpacityChanged             = 0x00000200,
     };
 
     layer_state_t()
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 707a321..6ad47d8 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -310,11 +310,10 @@
     layer_state_t* s = getLayerStateLocked(client, id);
     if (!s)
         return BAD_INDEX;
-    if (mask & layer_state_t::eLayerOpaque) {
-        s->what |= layer_state_t::eOpacityChanged;
-    }
-    if (mask & layer_state_t::eLayerHidden) {
-        s->what |= layer_state_t::eVisibilityChanged;
+    if (mask & layer_state_t::eLayerOpaque ||
+            mask & layer_state_t::eLayerHidden ||
+            mask & layer_state_t::eLayerSecure) {
+        s->what |= layer_state_t::eFlagsChanged;
     }
     s->flags &= ~mask;
     s->flags |= (flags & mask);
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index e2a0167..39b80ec 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -76,7 +76,6 @@
         mFiltering(false),
         mNeedsFiltering(false),
         mMesh(Mesh::TRIANGLE_FAN, 4, 2, 2),
-        mSecure(false),
         mProtectedByApp(false),
         mHasSurface(false),
         mClientRef(client),
@@ -96,6 +95,8 @@
         layerFlags |= layer_state_t::eLayerHidden;
     if (flags & ISurfaceComposerClient::eOpaque)
         layerFlags |= layer_state_t::eLayerOpaque;
+    if (flags & ISurfaceComposerClient::eSecure)
+        layerFlags |= layer_state_t::eLayerSecure;
 
     if (flags & ISurfaceComposerClient::eNonPremultiplied)
         mPremultipliedAlpha = false;
@@ -256,7 +257,6 @@
     mFormat = format;
 
     mPotentialCursor = (flags & ISurfaceComposerClient::eCursorWindow) ? true : false;
-    mSecure = (flags & ISurfaceComposerClient::eSecure) ? true : false;
     mProtectedByApp = (flags & ISurfaceComposerClient::eProtectedByApp) ? true : false;
     mCurrentOpacity = getOpacityForFormat(format);
 
@@ -858,6 +858,12 @@
     return ((s.flags & layer_state_t::eLayerOpaque) != 0) || mCurrentOpacity;
 }
 
+bool Layer::isSecure() const
+{
+    const Layer::State& s(mDrawingState);
+    return (s.flags & layer_state_t::eLayerSecure);
+}
+
 bool Layer::isProtected() const
 {
     const sp<GraphicBuffer>& activeBuffer(mActiveBuffer);
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 4e222b7..c1e5e9f 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -174,7 +174,7 @@
      * isSecure - true if this surface is secure, that is if it prevents
      * screenshots or VNC servers.
      */
-    virtual bool isSecure() const           { return mSecure; }
+    virtual bool isSecure() const;
 
     /*
      * isProtected - true if the layer may contain protected content in the
@@ -402,7 +402,6 @@
     mutable Texture mTexture;
 
     // page-flip thread (currently main thread)
-    bool mSecure; // no screenshots
     bool mProtectedByApp; // application requires protected path to external sink
 
     // protected by mLock
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index a332cda..de0f921 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2235,9 +2235,7 @@
             if (layer->setTransparentRegionHint(s.transparentRegion))
                 flags |= eTraversalNeeded;
         }
-        if ((what & layer_state_t::eVisibilityChanged) ||
-                (what & layer_state_t::eOpacityChanged)) {
-            // TODO: should we just use an eFlagsChanged for this?
+        if (what & layer_state_t::eFlagsChanged) {
             if (layer->setFlags(s.flags, s.mask))
                 flags |= eTraversalNeeded;
         }