Rename the Default* constants in java/config.

These values are used in two out of the many possible sdk_version
configurations, and therefore weren't really defaults in any
meaningful sense. Giving them more descriptive names makes the code
easier to follow.

Bug: 157640067
Test: m nothing
Change-Id: Icf38a9c0be2606ad0478929e1b40dfcee36cddef
diff --git a/java/sdk_test.go b/java/sdk_test.go
index e5d322c..773a70c 100644
--- a/java/sdk_test.go
+++ b/java/sdk_test.go
@@ -49,27 +49,27 @@
 	}{
 		{
 			name:           "default",
-			bootclasspath:  config.DefaultBootclasspathLibraries,
-			system:         config.DefaultSystemModules,
-			java8classpath: config.DefaultLibraries,
-			java9classpath: config.DefaultLibraries,
+			bootclasspath:  config.LegacyCorePlatformBootclasspathLibraries,
+			system:         config.LegacyCorePlatformSystemModules,
+			java8classpath: config.FrameworkLibraries,
+			java9classpath: config.FrameworkLibraries,
 			aidl:           "-Iframework/aidl",
 		},
 		{
 			name:           `sdk_version:"core_platform"`,
 			properties:     `sdk_version:"core_platform"`,
-			bootclasspath:  config.DefaultBootclasspathLibraries,
-			system:         config.DefaultSystemModules,
+			bootclasspath:  config.LegacyCorePlatformBootclasspathLibraries,
+			system:         config.LegacyCorePlatformSystemModules,
 			java8classpath: []string{},
 			aidl:           "",
 		},
 		{
 			name:           "blank sdk version",
 			properties:     `sdk_version: "",`,
-			bootclasspath:  config.DefaultBootclasspathLibraries,
-			system:         config.DefaultSystemModules,
-			java8classpath: config.DefaultLibraries,
-			java9classpath: config.DefaultLibraries,
+			bootclasspath:  config.LegacyCorePlatformBootclasspathLibraries,
+			system:         config.LegacyCorePlatformSystemModules,
+			java8classpath: config.FrameworkLibraries,
+			java9classpath: config.FrameworkLibraries,
 			aidl:           "-Iframework/aidl",
 		},
 		{