Fix misc-macro-parentheses warnings in services jni.

Bug: 28705665
Change-Id: Iaf965875b667e45e1557e447de7988f729adfd52
diff --git a/services/core/jni/com_android_server_input_InputManagerService.cpp b/services/core/jni/com_android_server_input_InputManagerService.cpp
index 1d4f047..b3c28c4 100644
--- a/services/core/jni/com_android_server_input_InputManagerService.cpp
+++ b/services/core/jni/com_android_server_input_InputManagerService.cpp
@@ -1429,15 +1429,15 @@
 
 #define FIND_CLASS(var, className) \
         var = env->FindClass(className); \
-        LOG_FATAL_IF(! var, "Unable to find class " className);
+        LOG_FATAL_IF(! (var), "Unable to find class " className);
 
 #define GET_METHOD_ID(var, clazz, methodName, methodDescriptor) \
         var = env->GetMethodID(clazz, methodName, methodDescriptor); \
-        LOG_FATAL_IF(! var, "Unable to find method " methodName);
+        LOG_FATAL_IF(! (var), "Unable to find method " methodName);
 
 #define GET_FIELD_ID(var, clazz, fieldName, fieldDescriptor) \
         var = env->GetFieldID(clazz, fieldName, fieldDescriptor); \
-        LOG_FATAL_IF(! var, "Unable to find field " fieldName);
+        LOG_FATAL_IF(! (var), "Unable to find field " fieldName);
 
 int register_android_server_InputManager(JNIEnv* env) {
     int res = jniRegisterNativeMethods(env, "com/android/server/input/InputManagerService",