apk-based test runner work for android

base/android/jni_android.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BASE_ANDROID_JNI_ANDROID_H_
 #define BASE_ANDROID_JNI_ANDROID_H_
 
 #include <jni.h>
 #include <sys/types.h>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/compiler_specific.h"
 
 namespace base {
 namespace android {
 
+// Used to mark symbols to be exported in a shared library's symbol table.
+#define JNI_EXPORT __attribute__ ((visibility("default")))
+
 // Attach the current thread to the VM (if necessary) and return the JNIEnv*.
 JNIEnv* AttachCurrentThread();
 
 // Detach the current thread from VM if it is attached.
 void DetachFromVM();
 
 // Initializes the global JVM. It is not necessarily called before
 // InitApplicationContext().
 void InitVM(JavaVM* vm);
 
@@ skipping 97 matching lines @@
 // and returns true.
 bool ClearException(JNIEnv* env);
 
 // This function will call CHECK() macro if there's any pending exception.
 void CheckException(JNIEnv* env);
 
 }  // namespace android
 }  // namespace base
 
 #endif  // BASE_ANDROID_JNI_ANDROID_H_