Clean up physical coupling

Narrow the use of #include directives in hwui, replacing with forward
declarations where straightforward. Speeds compiles; doesn't do any
restructuring of code.

Change-Id: Icac2baffb5896f55d8c6718e9bd9d4bfa02d3ca0
diff --git a/libs/hwui/AnimatorManager.cpp b/libs/hwui/AnimatorManager.cpp
index c28fb88..9a4ba21 100644
--- a/libs/hwui/AnimatorManager.cpp
+++ b/libs/hwui/AnimatorManager.cpp
@@ -17,7 +17,9 @@
 
 #include <algorithm>
 
+#include "Animator.h"
 #include "AnimationContext.h"
+#include "DamageAccumulator.h"
 #include "RenderNode.h"
 
 namespace android {