Set Realtime Audio Thread priority on Android

base/threading/platform_thread.h

Index: base/threading/platform_thread.h
diff --git a/base/threading/platform_thread.h b/base/threading/platform_thread.h
index 576695a4e7b5f8028f47cc5e02921b551ffb0a39..cf44b9ad416b1b6e624995a4d1c4c3193e4c961e 100644
--- a/base/threading/platform_thread.h
+++ b/base/threading/platform_thread.h
@@ -21,6 +21,10 @@
 #include <unistd.h>
 #endif
 
+#if defined(OS_ANDROID)
+#include "jni.h"
+#endif
+
 namespace base {
 
 // PlatformThreadHandle should not be assumed to be a numeric type, since the
@@ -46,6 +50,10 @@ enum ThreadPriority{
   kThreadPriority_RealtimeAudio
 };
 
+#if defined(OS_ANDROID)
+bool RegisterThreadUtils(JNIEnv* env);
+#endif
+
 // A namespace for low-level thread functions.
 class BASE_EXPORT PlatformThread {
  public: