Move logging.h into base/logging.h.

Change-Id: Id68f85f7c3a71b156cb40dec63f94d4fb827f279
diff --git a/src/memory_region.cc b/src/memory_region.cc
index 78cb91d..06eba0f 100644
--- a/src/memory_region.cc
+++ b/src/memory_region.cc
@@ -14,11 +14,13 @@
  * limitations under the License.
  */
 
+#include "memory_region.h"
+
 #include <stdint.h>
 #include <string.h>
+
+#include "base/logging.h"
 #include "globals.h"
-#include "logging.h"
-#include "memory_region.h"
 
 namespace art {