Make spec arrays const

This CL marks all of the Spec arrays as const.

Change-Id: Ie36f670a4230fcac2cba5544b9c6e5179b0c7073
Reviewed-on: https://pdfium-review.googlesource.com/16951
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/fpdfsdk/javascript/cjs_scalewhen.cpp b/fpdfsdk/javascript/cjs_scalewhen.cpp
index 7c45956..95314a2 100644
--- a/fpdfsdk/javascript/cjs_scalewhen.cpp
+++ b/fpdfsdk/javascript/cjs_scalewhen.cpp
@@ -6,7 +6,7 @@
 
 #include "fpdfsdk/javascript/cjs_scalewhen.h"
 
-JSConstSpec CJS_ScaleWhen::ConstSpecs[] = {
+const JSConstSpec CJS_ScaleWhen::ConstSpecs[] = {
     {"always", JSConstSpec::Number, 0, 0},
     {"never", JSConstSpec::Number, 1, 0},
     {"tooBig", JSConstSpec::Number, 2, 0},