Move jvmti allocation functions to own file.

This matches the style of most other jvmti functions and makes it
simpler to extend and tweak these functions later.

Bug: 62065509
Test: ./test.py --host -j40
Change-Id: I7080bf0fc211faaa0e481f6d401172fbdf6d36d6
diff --git a/runtime/openjdkjvmti/ti_allocator.cc b/runtime/openjdkjvmti/ti_allocator.cc
new file mode 100644
index 0000000..603a43f
--- /dev/null
+++ b/runtime/openjdkjvmti/ti_allocator.cc
@@ -0,0 +1,71 @@
+/* Copyright (C) 2016 The Android Open Source Project
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This file implements interfaces from the file jvmti.h. This implementation
+ * is licensed under the same terms as the file jvmti.h.  The
+ * copyright and license information for the file jvmti.h follows.
+ *
+ * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "ti_allocator.h"
+
+#include "art_jvmti.h"
+#include "art_method-inl.h"
+#include "base/enums.h"
+#include "dex_file_annotations.h"
+#include "events-inl.h"
+#include "jni_internal.h"
+#include "mirror/object_array-inl.h"
+#include "modifiers.h"
+#include "runtime_callbacks.h"
+#include "scoped_thread_state_change-inl.h"
+#include "ScopedLocalRef.h"
+#include "thread-current-inl.h"
+#include "thread_list.h"
+#include "ti_phase.h"
+
+namespace openjdkjvmti {
+
+jvmtiError AllocUtil::Allocate(jvmtiEnv* env ATTRIBUTE_UNUSED,
+                               jlong size,
+                               unsigned char** mem_ptr) {
+  if (size < 0) {
+    return ERR(ILLEGAL_ARGUMENT);
+  } else if (size == 0) {
+    *mem_ptr = nullptr;
+    return OK;
+  }
+  *mem_ptr = static_cast<unsigned char*>(malloc(size));
+  return (*mem_ptr != nullptr) ? OK : ERR(OUT_OF_MEMORY);
+}
+
+jvmtiError AllocUtil::Deallocate(jvmtiEnv* env ATTRIBUTE_UNUSED, unsigned char* mem) {
+  if (mem != nullptr) {
+    free(mem);
+  }
+  return OK;
+}
+
+}  // namespace openjdkjvmti