Revert of Move ADM specific Android files into modules/audio_device/android/

webrtc/modules/utility/include/helpers_android.h

Index: webrtc/modules/utility/include/helpers_android.h
diff --git a/webrtc/modules/utility/include/helpers_android.h b/webrtc/modules/utility/include/helpers_android.h
new file mode 100644
index 0000000000000000000000000000000000000000..2840ca965ea24a2f90837edd1b5440097caa91a0
--- /dev/null
+++ b/webrtc/modules/utility/include/helpers_android.h
@@ -0,0 +1,87 @@
+/*
+ *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_MODULES_UTILITY_INCLUDE_HELPERS_ANDROID_H_
+#define WEBRTC_MODULES_UTILITY_INCLUDE_HELPERS_ANDROID_H_
+
+#include <jni.h>
+#include <string>
+
+// Abort the process if |jni| has a Java exception pending.
+// TODO(henrika): merge with CHECK_JNI_EXCEPTION() in jni_helpers.h.
+#define CHECK_EXCEPTION(jni)        \
+  RTC_CHECK(!jni->ExceptionCheck()) \
+      << (jni->ExceptionDescribe(), jni->ExceptionClear(), "")
+
+namespace webrtc {
+
+// Return a |JNIEnv*| usable on this thread or NULL if this thread is detached.
+JNIEnv* GetEnv(JavaVM* jvm);
+
+// Return a |jlong| that will correctly convert back to |ptr|.  This is needed
+// because the alternative (of silently passing a 32-bit pointer to a vararg
+// function expecting a 64-bit param) picks up garbage in the high 32 bits.
+jlong PointerTojlong(void* ptr);
+
+// JNIEnv-helper methods that wraps the API which uses the JNI interface
+// pointer (JNIEnv*). It allows us to RTC_CHECK success and that no Java
+// exception is thrown while calling the method.
+jmethodID GetMethodID(
+    JNIEnv* jni, jclass c, const char* name, const char* signature);
+
+jmethodID GetStaticMethodID(
+    JNIEnv* jni, jclass c, const char* name, const char* signature);
+
+jclass FindClass(JNIEnv* jni, const char* name);
+
+jobject NewGlobalRef(JNIEnv* jni, jobject o);
+
+void DeleteGlobalRef(JNIEnv* jni, jobject o);
+
+// Return thread ID as a string.
+std::string GetThreadId();
+
+// Return thread ID as string suitable for debug logging.
+std::string GetThreadInfo();
+
+// Attach thread to JVM if necessary and detach at scope end if originally
+// attached.
+class AttachThreadScoped {
+ public:
+  explicit AttachThreadScoped(JavaVM* jvm);
+  ~AttachThreadScoped();
+  JNIEnv* env();
+
+ private:
+  bool attached_;
+  JavaVM* jvm_;
+  JNIEnv* env_;
+};
+
+// Scoped holder for global Java refs.
+template<class T>  // T is jclass, jobject, jintArray, etc.
+class ScopedGlobalRef {
+ public:
+  ScopedGlobalRef(JNIEnv* jni, T obj)
+      : jni_(jni), obj_(static_cast<T>(NewGlobalRef(jni, obj))) {}
+  ~ScopedGlobalRef() {
+    DeleteGlobalRef(jni_, obj_);
+  }
+  T operator*() const {
+    return obj_;
+  }
+ private:
+  JNIEnv* jni_;
+  T obj_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_UTILITY_INCLUDE_HELPERS_ANDROID_H_