Make the vast majority of JS headers private to src/javascript.

fpdfsdk/src/javascript/app.cpp

Index: fpdfsdk/src/javascript/app.cpp
diff --git a/fpdfsdk/src/javascript/app.cpp b/fpdfsdk/src/javascript/app.cpp
index bac87ea657b1d40995f34fd102cdf230ec53b4a7..a2e1af4dca8cb72a25e40cb0907a1dae44f6ad8e 100644
--- a/fpdfsdk/src/javascript/app.cpp
+++ b/fpdfsdk/src/javascript/app.cpp
@@ -4,17 +4,19 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
+#include "app.h"
+
 #include "../../../third_party/base/nonstd_unique_ptr.h"
+#include "../../include/fsdk_mgr.h"  // For CPDFDoc_Environment.
 #include "../../include/javascript/IJavaScript.h"
-#include "../../include/javascript/JS_Define.h"
-#include "../../include/javascript/JS_Object.h"
-#include "../../include/javascript/JS_Value.h"
-#include "../../include/javascript/app.h"
-#include "../../include/javascript/JS_EventHandler.h"
-#include "../../include/javascript/resource.h"
-#include "../../include/javascript/JS_Context.h"
-#include "../../include/javascript/JS_Runtime.h"
-#include "../../include/javascript/Document.h"
+#include "Document.h"
+#include "JS_Context.h"
+#include "JS_Define.h"
+#include "JS_EventHandler.h"
+#include "JS_Object.h"
+#include "JS_Runtime.h"
+#include "JS_Value.h"
+#include "resource.h"
 
 static v8::Isolate* GetIsolate(IFXJS_Context* cc) {
   CJS_Context* pContext = (CJS_Context*)cc;