Fix gettid() on Windows.

Accidentally had this all hidden by an #ifndef _WIN32 when I wrote it.

Change-Id: I3a6afefe23b799ea7aa0f9a380f5a743673096d0
diff --git a/include/cutils/threads.h b/include/cutils/threads.h
index 3133cdb..5727494 100644
--- a/include/cutils/threads.h
+++ b/include/cutils/threads.h
@@ -17,6 +17,14 @@
 #ifndef _LIBS_CUTILS_THREADS_H
 #define _LIBS_CUTILS_THREADS_H
 
+#include  <sys/types.h>
+
+#if !defined(_WIN32)
+#include <pthread.h>
+#else
+#include <windows.h>
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -29,10 +37,9 @@
 /***********************************************************************/
 /***********************************************************************/
 
-#if !defined(_WIN32)
+extern pid_t gettid();
 
-#include  <pthread.h>
-#include  <sys/types.h>
+#if !defined(_WIN32)
 
 typedef struct {
     pthread_mutex_t   lock;
@@ -40,14 +47,10 @@
     pthread_key_t     tls;
 } thread_store_t;
 
-extern pid_t gettid();
-
 #define  THREAD_STORE_INITIALIZER  { PTHREAD_MUTEX_INITIALIZER, 0, 0 }
 
 #else // !defined(_WIN32)
 
-#include <windows.h>
-
 typedef struct {
     int               lock_init;
     int               has_tls;
diff --git a/libcutils/threads.c b/libcutils/threads.c
index 5f5577b..3d8dd48 100644
--- a/libcutils/threads.c
+++ b/libcutils/threads.c
@@ -16,8 +16,6 @@
 
 #include "cutils/threads.h"
 
-#if !defined(_WIN32)
-
 // For gettid.
 #if defined(__APPLE__)
 #include "AvailabilityMacros.h"  // For MAC_OS_X_VERSION_MAX_ALLOWED
@@ -30,9 +28,29 @@
 #include <syscall.h>
 #include <unistd.h>
 #elif defined(_WIN32)
-#include <Windows.h>
+#include <windows.h>
 #endif
 
+// No definition needed for Android because we'll just pick up bionic's copy.
+#ifndef __ANDROID__
+pid_t gettid() {
+#if defined(__APPLE__)
+  uint64_t owner;
+  int rc = pthread_threadid_np(NULL, &owner);
+  if (rc != 0) {
+    abort();
+  }
+  return owner;
+#elif defined(__linux__)
+  return syscall(__NR_gettid);
+#elif defined(_WIN32)
+  return GetCurrentThreadId();
+#endif
+}
+#endif  // __ANDROID__
+
+#if !defined(_WIN32)
+
 void*  thread_store_get( thread_store_t*  store )
 {
     if (!store->has_tls)
@@ -58,24 +76,6 @@
     pthread_setspecific( store->tls, value );
 }
 
-// No definition needed for Android because we'll just pick up bionic's copy.
-#ifndef __ANDROID__
-pid_t gettid() {
-#if defined(__APPLE__)
-  uint64_t owner;
-  int rc = pthread_threadid_np(NULL, &owner);
-  if (rc != 0) {
-    abort();
-  }
-  return owner;
-#elif defined(__linux__)
-  return syscall(__NR_gettid);
-#elif defined(_WIN32)
-  return (pid_t)GetCurrentThreadId();
-#endif
-}
-#endif  // __ANDROID__
-
 #else /* !defined(_WIN32) */
 void*  thread_store_get( thread_store_t*  store )
 {