Fix non-xfa build on xfa branch.

Broken at 487d1a9/a0217b6.

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1504413002 .
diff --git a/fpdfsdk/src/javascript/app.cpp b/fpdfsdk/src/javascript/app.cpp
index f195ae7..cb1cc9b 100644
--- a/fpdfsdk/src/javascript/app.cpp
+++ b/fpdfsdk/src/javascript/app.cpp
@@ -199,7 +199,6 @@
                            CFX_WideString& sError) {
   if (!vp.IsGetting())
     return FALSE;
-
 #ifdef PDF_ENABLE_XFA
   CJS_Context* pContext = (CJS_Context*)cc;
   CPDFSDK_Document* pCurDoc = pContext->GetReaderDocument();
@@ -209,7 +208,6 @@
     return TRUE;
   }
 #endif  // PDF_ENABLE_XFA
-
   vp << JS_NUM_VIEWERVERSION;
   return TRUE;
 }
@@ -219,15 +217,18 @@
                       CFX_WideString& sError) {
   if (!vp.IsGetting())
     return FALSE;
+#ifdef PDF_ENABLE_XFA
   CPDFDoc_Environment* pEnv =
       static_cast<CJS_Context*>(cc)->GetJSRuntime()->GetReaderApp();
   if (!pEnv)
     return FALSE;
   CFX_WideString platfrom = pEnv->FFI_GetPlatform();
-  if (platfrom.IsEmpty())
-    vp << JS_STR_PLATFORM;
-  else
+  if (!platfrom.IsEmpty()) {
     vp << platfrom;
+    return TRUE;
+  }
+#endif
+  vp << JS_STR_PLATFORM;
   return TRUE;
 }
 
@@ -236,16 +237,18 @@
                       CFX_WideString& sError) {
   if (!vp.IsGetting())
     return FALSE;
+#ifdef PDF_ENABLE_XFA
   CPDFDoc_Environment* pEnv =
       static_cast<CJS_Context*>(cc)->GetJSRuntime()->GetReaderApp();
   if (!pEnv)
     return FALSE;
   CFX_WideString language = pEnv->FFI_GetLanguage();
-  if (language.IsEmpty())
-    vp << JS_STR_LANGUANGE;
-  else
+  if (!language.IsEmpty()) {
     vp << language;
-
+    return TRUE;
+  }
+#endif
+  vp << JS_STR_LANGUANGE;
   return TRUE;
 }