More refactor for JVMTI redefinition run tests (1/3)

Does as much as possible without making git get confused about the
provenance of files. Follow up CLs will move the files into the
appropriate places.

NOTE: BROKEN WITHOUT A FOLLOW-UP CL TO CHANGE FILE NAMES!

Bug: 32072923
Test: None
Change-Id: I1d66b42a5041d4ea1a0e8eaa61d55422a507e26f
diff --git a/test/934-load-transform/src/art/Redefinition.java b/test/934-load-transform/src/art/Redefinition.java
new file mode 100644
index 0000000..8cd2568
--- /dev/null
+++ b/test/934-load-transform/src/art/Redefinition.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package art;
+
+import java.util.ArrayList;
+// Common Redefinition functions. Placed here for use by CTS
+public class Redefinition {
+  // Bind native functions.
+  static {
+    Main.bindAgentJNIForClass(Redefinition.class);
+  }
+
+  public static final class CommonClassDefinition {
+    public final Class<?> target;
+    public final byte[] class_file_bytes;
+    public final byte[] dex_file_bytes;
+
+    public CommonClassDefinition(Class<?> target, byte[] class_file_bytes, byte[] dex_file_bytes) {
+      this.target = target;
+      this.class_file_bytes = class_file_bytes;
+      this.dex_file_bytes = dex_file_bytes;
+    }
+  }
+
+  // Transforms the class
+  public static native void doCommonClassRedefinition(Class<?> target,
+                                                      byte[] classfile,
+                                                      byte[] dexfile);
+
+  public static void doMultiClassRedefinition(CommonClassDefinition... defs) {
+    ArrayList<Class<?>> classes = new ArrayList<>();
+    ArrayList<byte[]> class_files = new ArrayList<>();
+    ArrayList<byte[]> dex_files = new ArrayList<>();
+
+    for (CommonClassDefinition d : defs) {
+      classes.add(d.target);
+      class_files.add(d.class_file_bytes);
+      dex_files.add(d.dex_file_bytes);
+    }
+    doCommonMultiClassRedefinition(classes.toArray(new Class<?>[0]),
+                                   class_files.toArray(new byte[0][]),
+                                   dex_files.toArray(new byte[0][]));
+  }
+
+  public static void addMultiTransformationResults(CommonClassDefinition... defs) {
+    for (CommonClassDefinition d : defs) {
+      addCommonTransformationResult(d.target.getCanonicalName(),
+                                    d.class_file_bytes,
+                                    d.dex_file_bytes);
+    }
+  }
+
+  public static native void doCommonMultiClassRedefinition(Class<?>[] targets,
+                                                           byte[][] classfiles,
+                                                           byte[][] dexfiles);
+  public static native void doCommonClassRetransformation(Class<?>... target);
+  public static native void setPopRetransformations(boolean pop);
+  public static native void popTransformationFor(String name);
+  public static native void enableCommonRetransformation(boolean enable);
+  public static native void addCommonTransformationResult(String target_name,
+                                                          byte[] class_bytes,
+                                                          byte[] dex_bytes);
+}