support duration hint to improve fling behavior

bug 24059298

Change-Id: I0f9b50d5ff7ab8b7c5263286ed2a995f9f624181

diff --git a/power/power.c b/power/power.c
index 8415a49..d6f3b20 100644
--- a/power/power.c
+++ b/power/power.c

@@ -227,6 +227,19 @@
             int resources_downmigrate[] = {0x4F0A};
             int duration_downmigrate = 1000;
 
+            if (data) {
+                // modify downmigrate duration based on interaction data hint
+                // 1000 <= duration_downmigrate <= 5000
+                int duration_hint = *((int*)data);
+                if (duration_hint > 1000) {
+                    if (duration_hint < 5000) {
+                        duration_downmigrate = duration_hint;
+                    } else {
+                        duration_downmigrate = 5000;
+                    }
+                }
+            }
+
             interaction(duration, sizeof(resources)/sizeof(resources[0]), resources);
             interaction(duration_big, sizeof(resources_big)/sizeof(resources_big[0]), resources_big);
             interaction(duration_downmigrate, sizeof(resources_downmigrate)/sizeof(resources_downmigrate[0]), resources_downmigrate);