Make javascript field observe sdk document

fpdfsdk/javascript/Field.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef FPDFSDK_JAVASCRIPT_FIELD_H_
 #define FPDFSDK_JAVASCRIPT_FIELD_H_
 
 #include <string>
 #include <vector>
 
+#include "core/fxcrt/include/cfx_observable.h"
+#include "fpdfsdk/include/fsdk_mgr.h"

[Tom Sepez, 2016/09/12 18:39:37]

note:  Dan, if you want to split CPDFSDK_Document out from fsdk_mgr, that would
be swell.

[dsinclair, 2016/09/12 18:49:43]

Acknowledged.

 #include "fpdfsdk/javascript/JS_Define.h"
 #include "fpdfsdk/pdfwindow/PWL_Wnd.h"  // For CPWL_Color.
 
 class CPDFSDK_Widget;
 class Document;
 
 enum FIELD_PROP {
   FP_ALIGNMENT,
   FP_BORDERSTYLE,
   FP_BUTTONALIGNX,
@@ skipping 429 matching lines @@
   void AddDelay_Rect(FIELD_PROP prop, const CFX_FloatRect& rect);
   void AddDelay_Color(FIELD_PROP prop, const CPWL_Color& color);
   void AddDelay_WordArray(FIELD_PROP prop, const std::vector<uint32_t>& array);
   void AddDelay_WideStringArray(FIELD_PROP prop,
                                 const std::vector<CFX_WideString>& array);
 
   void DoDelay();
 
  public:
   Document* m_pJSDoc;
-  CPDFSDK_Document* m_pDocument;
+  CPDFSDK_Document::ObservedPtr m_pDocument;
   CFX_WideString m_FieldName;
   int m_nFormControlIndex;
   FX_BOOL m_bCanSet;
   FX_BOOL m_bDelay;
 };
 
 class CJS_Field : public CJS_Object {
  public:
   explicit CJS_Field(v8::Local<v8::Object> pObject) : CJS_Object(pObject) {}
   ~CJS_Field() override {}
@@ skipping 76 matching lines @@
   JS_STATIC_METHOD(setLock, Field);
   JS_STATIC_METHOD(signatureGetModifications, Field);
   JS_STATIC_METHOD(signatureGetSeedValue, Field);
   JS_STATIC_METHOD(signatureInfo, Field);
   JS_STATIC_METHOD(signatureSetSeedValue, Field);
   JS_STATIC_METHOD(signatureSign, Field);
   JS_STATIC_METHOD(signatureValidate, Field);
 };
 
 #endif  // FPDFSDK_JAVASCRIPT_FIELD_H_