Bug 1658169 - Unified compilation fixes. r=tnikkel

Differential Revision: https://phabricator.services.mozilla.com/D89661

gfx/layers/composite/ColorLayerComposite.cpp

@@ -14,6 +14,7 @@
 #include "mozilla/layers/CompositorTypes.h"  // for DiagnosticFlags::COLOR
 #include "mozilla/layers/Effects.h"          // for Effect, EffectChain, etc
 #include "mozilla/mozalloc.h"                // for operator delete, etc
+#include "UnitTransforms.h"                  // for ViewAs
 
 namespace mozilla {
 namespace layers {