ART: Include cleanup

Let clang-format reorder the header includes.

Derived with:

* .clang-format:
 BasedOnStyle: Google
 IncludeIsMainRegex: '(_test|-inl)?$'

* Steps:
 find . -name '*.cc' -o -name '*.h' | xargs sed -i.bak -e 's/^#include/ #include/' ; git commit -a -m 'ART: Include cleanup'
 git-clang-format -style=file HEAD^
 manual inspection
 git commit -a --amend

Test: mmma art
Change-Id: Ia963a8ce3ce5f96b5e78acd587e26908c7a70d02
diff --git a/runtime/runtime_callbacks_test.cc b/runtime/runtime_callbacks_test.cc
index 0ea3180..983278d 100644
--- a/runtime/runtime_callbacks_test.cc
+++ b/runtime/runtime_callbacks_test.cc
@@ -16,7 +16,6 @@
 
 #include "runtime_callbacks.h"
 
-#include "jni.h"
 #include <signal.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ -25,6 +24,8 @@
 #include <memory>
 #include <string>
 
+#include "jni.h"
+
 #include "art_method-inl.h"
 #include "base/mutex.h"
 #include "class_linker.h"