Remove webrtc/examples/android/media_demo.

webrtc/examples/android/media_demo/jni/jni_helpers.cc

-/*
- *  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.
- */
-
-#include "webrtc/examples/android/media_demo/jni/jni_helpers.h"
-
-#include <limits>
-
-jmethodID GetMethodID(JNIEnv* jni, jclass c, const std::string& name,
-                      const char* signature) {
-  jmethodID m = jni->GetMethodID(c, name.c_str(), signature);
-  CHECK_JNI_EXCEPTION(jni, "error during GetMethodID");
-  return m;
-}
-
-jlong jlongFromPointer(void* ptr) {
-  CHECK(sizeof(intptr_t) <= sizeof(jlong), "Time to rethink the use of jlongs");
-  // Going through intptr_t to be obvious about the definedness of the
-  // conversion from pointer to integral type.  intptr_t to jlong is a standard
-  // widening by the COMPILE_ASSERT above.
-  jlong ret = reinterpret_cast<intptr_t>(ptr);
-  CHECK(reinterpret_cast<void*>(ret) == ptr,
-        "jlong does not convert back to pointer");
-  return ret;
-}
-
-// Given a (UTF-16) jstring return a new UTF-8 native string.
-std::string JavaToStdString(JNIEnv* jni, const jstring& j_string) {
-  const char* chars = jni->GetStringUTFChars(j_string, NULL);
-  CHECK_JNI_EXCEPTION(jni, "Error during GetStringUTFChars");
-  std::string str(chars, jni->GetStringUTFLength(j_string));
-  CHECK_JNI_EXCEPTION(jni, "Error during GetStringUTFLength");
-  jni->ReleaseStringUTFChars(j_string, chars);
-  CHECK_JNI_EXCEPTION(jni, "Error during ReleaseStringUTFChars");
-  return str;
-}
-
-ClassReferenceHolder::ClassReferenceHolder(JNIEnv* jni, const char** classes,
-                                           int size) {
-  for (int i = 0; i < size; ++i) {
-    LoadClass(jni, classes[i]);
-  }
-}
-ClassReferenceHolder::~ClassReferenceHolder() {
-  CHECK(classes_.empty(), "Must call FreeReferences() before dtor!");
-}
-
-void ClassReferenceHolder::FreeReferences(JNIEnv* jni) {
-  for (std::map<std::string, jclass>::const_iterator it = classes_.begin();
-       it != classes_.end(); ++it) {
-    jni->DeleteGlobalRef(it->second);
-  }
-  classes_.clear();
-}
-
-jclass ClassReferenceHolder::GetClass(const std::string& name) {
-  std::map<std::string, jclass>::iterator it = classes_.find(name);
-  CHECK(it != classes_.end(), "Could not find class");
-  return it->second;
-}
-
-void ClassReferenceHolder::LoadClass(JNIEnv* jni, const std::string& name) {
-  jclass localRef = jni->FindClass(name.c_str());
-  CHECK_JNI_EXCEPTION(jni, "Could not load class");
-  CHECK(localRef, name.c_str());
-  jclass globalRef = reinterpret_cast<jclass>(jni->NewGlobalRef(localRef));
-  CHECK_JNI_EXCEPTION(jni, "error during NewGlobalRef");
-  CHECK(globalRef, name.c_str());
-  bool inserted = classes_.insert(std::make_pair(name, globalRef)).second;
-  CHECK(inserted, "Duplicate class name");
-}