Parameterize manually benchmark collection in MicrodroidHostTests

This cl implements manual parameterization for the benchmark
collection test in MicrodroidHostTests as a temporary workaround.

This is necessary because the TradeFed parameterizer currently
doesn't support metrics collection, and a permanent solution is
not expected to be in place soon - b/209036125.

Bug: 370885079
Test: atest MicrodroidHostTests
Change-Id: I419abf7bdaf627ec763ac39769e387e93ec003f6
diff --git a/tests/hostside/java/com/android/microdroid/test/MicrodroidHostTests.java b/tests/hostside/java/com/android/microdroid/test/MicrodroidHostTests.java
index ffcf338..ee2da09 100644
--- a/tests/hostside/java/com/android/microdroid/test/MicrodroidHostTests.java
+++ b/tests/hostside/java/com/android/microdroid/test/MicrodroidHostTests.java
@@ -1050,9 +1050,28 @@
     }
 
     @Test
-    @Parameters(method = "params")
-    @TestCaseName("{method}_protectedVm_{0}_gki_{1}")
-    public void testMicrodroidRamUsage(boolean protectedVm, String gki) throws Exception {
+    public void testMicrodroidRamUsage_protectedVm_true_gki_null() throws Exception {
+        checkMicrodroidRamUsage(/* protectedVm= */ true, /* gki= */ "null");
+    }
+
+    @Test
+    public void testMicrodroidRamUsage_protectedVm_false_gki_null() throws Exception {
+        checkMicrodroidRamUsage(/* protectedVm= */ false, /* gki= */ "null");
+    }
+
+    @Test
+    public void testMicrodroidRamUsage_protectedVm_true_gki_android15() throws Exception {
+        checkMicrodroidRamUsage(/* protectedVm= */ true, /* gki= */ "android15");
+    }
+
+    @Test
+    public void testMicrodroidRamUsage_protectedVm_false_gki_android15() throws Exception {
+        checkMicrodroidRamUsage(/* protectedVm= */ false, /* gki= */ "android15");
+    }
+
+    // TODO(b/209036125): Upgrade this function to a parameterized test once metrics can be
+    // collected with tradefed parameterizer.
+    void checkMicrodroidRamUsage(boolean protectedVm, String gki) throws Exception {
         // Preconditions
         assumeKernelSupported(gki);
         assumeVmTypeSupported(protectedVm);