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diff --git a/src/common/android/testing/pthread_fixes.h b/src/common/android/testing/pthread_fixes.h
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+// Copyright (c) 2012, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This contains Pthread-related functions not provided by the Android NDK
+// but required by the Breakpad unit test. The functions are inlined here
+// in a C++ anonymous namespace in order to keep the build files simples.
+
+#ifndef GOOGLE_BREAKPAD_COMMON_ANDROID_TESTING_PTHREAD_FIXES_H
+#define GOOGLE_BREAKPAD_COMMON_ANDROID_TESTING_PTHREAD_FIXES_H
+
+#include <pthread.h>
+
+namespace {
+
+// Android doesn't provide pthread_barrier_t for now.
+#ifndef PTHREAD_BARRIER_SERIAL_THREAD
+
+// Anything except 0 will do here.
+#define PTHREAD_BARRIER_SERIAL_THREAD  0x12345
+
+typedef struct {
+  pthread_mutex_t  mutex;
+  pthread_cond_t   cond;
+  unsigned         count;
+} pthread_barrier_t;
+
+int pthread_barrier_init(pthread_barrier_t* barrier,
+                         const void* /* barrier_attr */,
+                         unsigned count) {
+  barrier->count = count;
+  pthread_mutex_init(&barrier->mutex, NULL);
+  pthread_cond_init(&barrier->cond, NULL);
+  return 0;
+}
+
+int pthread_barrier_wait(pthread_barrier_t* barrier) {
+  // Lock the mutex
+  pthread_mutex_lock(&barrier->mutex);
+  // Decrement the count. If this is the first thread to reach 0, wake up
+  // waiters, unlock the mutex, then return PTHREAD_BARRIER_SERIAL_THREAD.
+  if (--barrier->count == 0) {
+    // First thread to reach the barrier
+    pthread_cond_broadcast(&barrier->cond);
+    pthread_mutex_unlock(&barrier->mutex);
+    return PTHREAD_BARRIER_SERIAL_THREAD;
+  }
+  // Otherwise, wait for other threads until the count reaches 0, then
+  // return 0 to indicate this is not the first thread.
+  do {
+    pthread_cond_wait(&barrier->cond, &barrier->mutex);
+  } while (barrier->count > 0);
+
+  pthread_mutex_unlock(&barrier->mutex);
+  return 0;
+}
+
+int pthread_barrier_destroy(pthread_barrier_t *barrier) {
+  barrier->count = 0;
+  pthread_cond_destroy(&barrier->cond);
+  pthread_mutex_destroy(&barrier->mutex);
+}
+
+#endif  // defined(PTHREAD_BARRIER_SERIAL_THREAD)
+
+int pthread_yield(void) {
+  sched_yield();
+  return 0;
+}
+
+}  // namespace
+
+#endif  // GOOGLE_BREAKPAD_COMMON_ANDROID_TESTING_PTHREAD_FIXES_H