Generating Hdumps for more leaks

Test: presubmits
Bug: 177065099
Change-Id: I386229cf92a925d2953952ed0fab6c44dcdc61f0
diff --git a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
index d3fc89e..37dd4d2 100644
--- a/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
+++ b/tests/src/com/android/launcher3/ui/AbstractLauncherUiTest.java
@@ -150,7 +150,7 @@
         return "Activity leak detector has found leaked activities, " + dumpHprofData() + ".";
     }
 
-    private static String dumpHprofData() {
+    public static String dumpHprofData() {
         try {
             final String fileName = getInstrumentation().getTargetContext().getFilesDir().getPath()
                     + "/ActivityLeakHeapDump.hprof";