Make LaunchPerformanceBase and UnitTestSuiteBuilder as APIs

Those two classes are used by many tests using android.test.runner.
Making them as public APIs so that those tests can depend on the public
stub of android.test.runner and stop depending on its implementation
library.

Bug: 157007292
Test: m

Change-Id: I33b458f34ffd4c73430f538a85aac308baa6e010
diff --git a/test-runner/api/current.txt b/test-runner/api/current.txt
index c093ac7..2c19a2e 100644
--- a/test-runner/api/current.txt
+++ b/test-runner/api/current.txt
@@ -100,6 +100,13 @@
     method @Deprecated public java.util.List<android.content.Intent> getAndClearBroadcastIntents();
   }
 
+  @Deprecated public class LaunchPerformanceBase extends android.app.Instrumentation {
+    ctor @Deprecated public LaunchPerformanceBase();
+    method @Deprecated protected void LaunchApp();
+    field @Deprecated protected android.content.Intent mIntent;
+    field @Deprecated protected android.os.Bundle mResults;
+  }
+
   public class LoaderTestCase extends android.test.AndroidTestCase {
     ctor public LoaderTestCase();
     method public <T> T getLoaderResultSynchronously(android.content.Loader<T>);
@@ -285,6 +292,11 @@
     method @Deprecated public void testSuiteConstructionFailed();
   }
 
+  @Deprecated public class UnitTestSuiteBuilder extends android.test.suitebuilder.TestSuiteBuilder {
+    ctor @Deprecated public UnitTestSuiteBuilder(Class);
+    ctor @Deprecated public UnitTestSuiteBuilder(String, ClassLoader);
+  }
+
 }
 
 package junit.runner {