Fix a few more -Wreorder warnings.

No intended behavior change.

BUG=pdfium:29
R=bo_xu@foxitsoftware.com

Review URL: https://codereview.chromium.org/436483002
diff --git a/fpdfsdk/src/javascript/JS_Runtime.cpp b/fpdfsdk/src/javascript/JS_Runtime.cpp
index 543540b..be11b04 100644
--- a/fpdfsdk/src/javascript/JS_Runtime.cpp
+++ b/fpdfsdk/src/javascript/JS_Runtime.cpp
@@ -104,8 +104,8 @@
 CJS_Runtime::CJS_Runtime(CPDFDoc_Environment * pApp) : 
 	m_pApp(pApp),
 	m_pDocument(NULL),
-	m_pFieldEventPath(NULL),
 	m_bBlocking(FALSE),
+	m_pFieldEventPath(NULL),
 	m_bRegistered(FALSE)
 {
 	m_isolate = v8::Isolate::New();