drm_hwcomposer: Use queue buffer for pending sets

Instead of just using a front and back buffer, use a queue buffer
to allow more than one pending set.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Change-Id: I451acbcb08fac5191b76ec2e372fe612d227167c
diff --git a/Android.mk b/Android.mk
index efc78ce..6236c57 100644
--- a/Android.mk
+++ b/Android.mk
@@ -23,13 +23,15 @@
 	libdrm \
 	libhardware \
 	liblog \
+	libstlport \
 	libsync \
 	libutils \
 
 LOCAL_C_INCLUDES := \
-	external/drm_gralloc \
+	bionic \
 	external/libdrm \
 	external/libdrm/include/drm \
+	external/stlport/stlport \
 	system/core/include/utils \
 	system/core/libsync/include \