Rename App to Env where needed.

More instances of CPDFSDK_Environment being called m_pApp in the code. Renamed
to m_pEnv to be clear that it's the environment not an app object.

Review-Url: https://codereview.chromium.org/2354413002
diff --git a/fpdfsdk/javascript/Document.cpp b/fpdfsdk/javascript/Document.cpp
index 8935037..ea225f0 100644
--- a/fpdfsdk/javascript/Document.cpp
+++ b/fpdfsdk/javascript/Document.cpp
@@ -407,7 +407,7 @@
     return FALSE;
 
   pRuntime->BeginBlock();
-  CPDFSDK_Environment* pEnv = pContext->GetReaderApp();
+  CPDFSDK_Environment* pEnv = pContext->GetReaderEnv();
   pEnv->JS_docmailForm(textBuf.GetBuffer(), textBuf.GetLength(), bUI,
                        cTo.c_str(), cSubject.c_str(), cCc.c_str(), cBcc.c_str(),
                        cMsg.c_str());
@@ -755,7 +755,7 @@
   }
 
   pRuntime->BeginBlock();
-  CPDFSDK_Environment* pEnv = pRuntime->GetReaderApp();
+  CPDFSDK_Environment* pEnv = pRuntime->GetReaderEnv();
   pEnv->JS_docmailForm(nullptr, 0, bUI, cTo.c_str(), cSubject.c_str(),
                        cCc.c_str(), cBcc.c_str(), cMsg.c_str());
   pRuntime->EndBlock();
diff --git a/fpdfsdk/javascript/PublicMethods.cpp b/fpdfsdk/javascript/PublicMethods.cpp
index 435c383..65af6a1 100644
--- a/fpdfsdk/javascript/PublicMethods.cpp
+++ b/fpdfsdk/javascript/PublicMethods.cpp
@@ -80,9 +80,9 @@
 }
 
 void AlertIfPossible(CJS_Context* pContext, const FX_WCHAR* swMsg) {
-  CPDFSDK_Environment* pApp = pContext->GetReaderApp();
-  if (pApp)
-    pApp->JS_appAlert(swMsg, nullptr, 0, 3);
+  CPDFSDK_Environment* pEnv = pContext->GetReaderEnv();
+  if (pEnv)
+    pEnv->JS_appAlert(swMsg, nullptr, 0, 3);
 }
 
 }  // namespace
diff --git a/fpdfsdk/javascript/app.cpp b/fpdfsdk/javascript/app.cpp
index fc2a440..a6c6c73 100644
--- a/fpdfsdk/javascript/app.cpp
+++ b/fpdfsdk/javascript/app.cpp
@@ -25,7 +25,7 @@
 class GlobalTimer {
  public:
   GlobalTimer(app* pObj,
-              CPDFSDK_Environment* pApp,
+              CPDFSDK_Environment* pEnv,
               CJS_Runtime* pRuntime,
               int nType,
               const CFX_WideString& script,
@@ -55,11 +55,11 @@
   const uint32_t m_dwTimeOut;
   const CFX_WideString m_swJScript;
   CJS_Runtime::ObservedPtr m_pRuntime;
-  CPDFSDK_Environment* const m_pApp;
+  CPDFSDK_Environment* const m_pEnv;
 };
 
 GlobalTimer::GlobalTimer(app* pObj,
-                         CPDFSDK_Environment* pApp,
+                         CPDFSDK_Environment* pEnv,
                          CJS_Runtime* pRuntime,
                          int nType,
                          const CFX_WideString& script,
@@ -72,8 +72,8 @@
       m_dwTimeOut(dwTimeOut),
       m_swJScript(script),
       m_pRuntime(pRuntime),
-      m_pApp(pApp) {
-  CFX_SystemHandler* pHandler = m_pApp->GetSysHandler();
+      m_pEnv(pEnv) {
+  CFX_SystemHandler* pHandler = m_pEnv->GetSysHandler();
   m_nTimerID = pHandler->SetTimer(dwElapse, Trigger);
   (*GetGlobalTimerMap())[m_nTimerID] = this;
 }
@@ -83,7 +83,7 @@
     return;
 
   if (GetRuntime())
-    m_pApp->GetSysHandler()->KillTimer(m_nTimerID);
+    m_pEnv->GetSysHandler()->KillTimer(m_nTimerID);
 
   GetGlobalTimerMap()->erase(m_nTimerID);
 }
@@ -217,11 +217,11 @@
     return FALSE;
 
   CJS_Context* pContext = (CJS_Context*)cc;
-  CPDFSDK_Environment* pApp = pContext->GetReaderApp();
+  CPDFSDK_Environment* pEnv = pContext->GetReaderEnv();
   CJS_Runtime* pRuntime = pContext->GetJSRuntime();
   CPDFSDK_Document* pCurDoc = pContext->GetReaderDocument();
   CJS_Array aDocs;
-  if (CPDFSDK_Document* pDoc = pApp->GetSDKDocument()) {
+  if (CPDFSDK_Document* pDoc = pEnv->GetSDKDocument()) {
     CJS_Document* pJSDocument = nullptr;
     if (pDoc == pCurDoc) {
       v8::Local<v8::Object> pObj = pRuntime->GetThisObj();
@@ -255,8 +255,8 @@
     m_bCalculate = (FX_BOOL)bVP;
 
     CJS_Context* pContext = (CJS_Context*)cc;
-    CPDFSDK_Environment* pApp = pContext->GetReaderApp();
-    if (CPDFSDK_Document* pDoc = pApp->GetSDKDocument())
+    CPDFSDK_Environment* pEnv = pContext->GetReaderEnv();
+    if (CPDFSDK_Document* pDoc = pEnv->GetSDKDocument())
       pDoc->GetInterForm()->EnableCalculate((FX_BOOL)m_bCalculate);
   } else {
     vp << (bool)m_bCalculate;
@@ -322,7 +322,7 @@
     return FALSE;
 #ifdef PDF_ENABLE_XFA
   CPDFSDK_Environment* pEnv =
-      static_cast<CJS_Context*>(cc)->GetJSRuntime()->GetReaderApp();
+      static_cast<CJS_Context*>(cc)->GetJSRuntime()->GetReaderEnv();
   if (!pEnv)
     return FALSE;
   CFX_WideString platfrom = pEnv->GetPlatform();
@@ -342,7 +342,7 @@
     return FALSE;
 #ifdef PDF_ENABLE_XFA
   CPDFSDK_Environment* pEnv =
-      static_cast<CJS_Context*>(cc)->GetJSRuntime()->GetReaderApp();
+      static_cast<CJS_Context*>(cc)->GetJSRuntime()->GetReaderEnv();
   if (!pEnv)
     return FALSE;
   CFX_WideString language = pEnv->GetLanguage();
@@ -391,8 +391,8 @@
     return FALSE;
   }
 
-  CPDFSDK_Environment* pApp = pRuntime->GetReaderApp();
-  if (!pApp) {
+  CPDFSDK_Environment* pEnv = pRuntime->GetReaderEnv();
+  if (!pEnv) {
     vRet = CJS_Value(pRuntime, 0);
     return TRUE;
   }
@@ -432,10 +432,10 @@
     swTitle = JSGetStringFromID(IDS_STRING_JSALERT);
 
   pRuntime->BeginBlock();
-  if (CPDFSDK_Document* pDoc = pApp->GetSDKDocument())
+  if (CPDFSDK_Document* pDoc = pEnv->GetSDKDocument())
     pDoc->KillFocusAnnot();
 
-  vRet = CJS_Value(pRuntime, pApp->JS_appAlert(swMsg.c_str(), swTitle.c_str(),
+  vRet = CJS_Value(pRuntime, pEnv->JS_appAlert(swMsg.c_str(), swTitle.c_str(),
                                                iType, iIcon));
   pRuntime->EndBlock();
   return TRUE;
@@ -447,7 +447,7 @@
                   CFX_WideString& sError) {
   if (params.size() == 1) {
     CJS_Runtime* pRuntime = CJS_Runtime::FromContext(cc);
-    CPDFSDK_Environment* pEnv = pRuntime->GetReaderApp();
+    CPDFSDK_Environment* pEnv = pRuntime->GetReaderEnv();
     pEnv->JS_appBeep(params[0].ToInt(pRuntime));
     return TRUE;
   }
@@ -492,10 +492,10 @@
   }
 
   uint32_t dwInterval = params.size() > 1 ? params[1].ToInt(pRuntime) : 1000;
-  CPDFSDK_Environment* pApp = pRuntime->GetReaderApp();
+  CPDFSDK_Environment* pEnv = pRuntime->GetReaderEnv();
 
   GlobalTimer* timerRef =
-      new GlobalTimer(this, pApp, pRuntime, 0, script, dwInterval, 0);
+      new GlobalTimer(this, pEnv, pRuntime, 0, script, dwInterval, 0);
   m_Timers.insert(std::unique_ptr<GlobalTimer>(timerRef));
 
   v8::Local<v8::Object> pRetObj =
@@ -526,10 +526,10 @@
   }
 
   uint32_t dwTimeOut = params.size() > 1 ? params[1].ToInt(pRuntime) : 1000;
-  CPDFSDK_Environment* pApp = pRuntime->GetReaderApp();
+  CPDFSDK_Environment* pEnv = pRuntime->GetReaderEnv();
 
   GlobalTimer* timerRef =
-      new GlobalTimer(this, pApp, pRuntime, 1, script, dwTimeOut, dwTimeOut);
+      new GlobalTimer(this, pEnv, pRuntime, 1, script, dwTimeOut, dwTimeOut);
   m_Timers.insert(std::unique_ptr<GlobalTimer>(timerRef));
 
   v8::Local<v8::Object> pRetObj =
@@ -677,7 +677,7 @@
 
   pRuntime->BeginBlock();
   CJS_Context* pContext = static_cast<CJS_Context*>(cc);
-  pContext->GetReaderApp()->JS_docmailForm(nullptr, 0, bUI, cTo.c_str(),
+  pContext->GetReaderEnv()->JS_docmailForm(nullptr, 0, bUI, cTo.c_str(),
                                            cSubject.c_str(), cCc.c_str(),
                                            cBcc.c_str(), cMsg.c_str());
   pRuntime->EndBlock();
@@ -792,7 +792,7 @@
   memset(pBuff.get(), 0, MAX_INPUT_BYTES + 2);
 
   CJS_Context* pContext = static_cast<CJS_Context*>(cc);
-  int nLengthBytes = pContext->GetReaderApp()->JS_appResponse(
+  int nLengthBytes = pContext->GetReaderEnv()->JS_appResponse(
       swQuestion.c_str(), swTitle.c_str(), swDefault.c_str(), swLabel.c_str(),
       bPassword, pBuff.get(), MAX_INPUT_BYTES);
 
diff --git a/fpdfsdk/javascript/cjs_context.cpp b/fpdfsdk/javascript/cjs_context.cpp
index 4a6e4d3..3f13cd3 100644
--- a/fpdfsdk/javascript/cjs_context.cpp
+++ b/fpdfsdk/javascript/cjs_context.cpp
@@ -21,8 +21,8 @@
   return m_pRuntime->GetReaderDocument();
 }
 
-CPDFSDK_Environment* CJS_Context::GetReaderApp() {
-  return m_pRuntime->GetReaderApp();
+CPDFSDK_Environment* CJS_Context::GetReaderEnv() {
+  return m_pRuntime->GetReaderEnv();
 }
 
 FX_BOOL CJS_Context::RunScript(const CFX_WideString& script,
diff --git a/fpdfsdk/javascript/cjs_context.h b/fpdfsdk/javascript/cjs_context.h
index 03403de..41f2042 100644
--- a/fpdfsdk/javascript/cjs_context.h
+++ b/fpdfsdk/javascript/cjs_context.h
@@ -125,7 +125,7 @@
   CJS_Runtime* GetJSRuntime() const { return m_pRuntime; }
   CJS_EventHandler* GetEventHandler() const { return m_pEventHandler.get(); }
 
-  CPDFSDK_Environment* GetReaderApp();
+  CPDFSDK_Environment* GetReaderEnv();
   CPDFSDK_Document* GetReaderDocument();
 
  private:
diff --git a/fpdfsdk/javascript/cjs_runtime.cpp b/fpdfsdk/javascript/cjs_runtime.cpp
index 1afde80..0ca64b1 100644
--- a/fpdfsdk/javascript/cjs_runtime.cpp
+++ b/fpdfsdk/javascript/cjs_runtime.cpp
@@ -63,14 +63,14 @@
       CFXJS_Engine::CurrentEngineFromIsolate(pIsolate));
 }
 
-CJS_Runtime::CJS_Runtime(CPDFSDK_Environment* pApp)
-    : m_pApp(pApp),
+CJS_Runtime::CJS_Runtime(CPDFSDK_Environment* pEnv)
+    : m_pEnv(pEnv),
       m_pDocument(nullptr),
       m_bBlocking(false),
       m_isolateManaged(false) {
   v8::Isolate* pIsolate = nullptr;
 #ifndef PDF_ENABLE_XFA
-  IPDF_JSPLATFORM* pPlatform = m_pApp->GetFormFillInfo()->m_pJsPlatform;
+  IPDF_JSPLATFORM* pPlatform = m_pEnv->GetFormFillInfo()->m_pJsPlatform;
   if (pPlatform->version <= 2) {
     unsigned int embedderDataSlot = 0;
     v8::Isolate* pExternalIsolate = nullptr;
@@ -88,7 +88,7 @@
     pIsolate = CPDFXFA_App::GetInstance()->GetJSERuntime();
     SetIsolate(pIsolate);
   } else {
-    IPDF_JSPLATFORM* pPlatform = m_pApp->GetFormFillInfo()->m_pJsPlatform;
+    IPDF_JSPLATFORM* pPlatform = m_pEnv->GetFormFillInfo()->m_pJsPlatform;
     if (pPlatform->version <= 2) {
       unsigned int embedderDataSlot = 0;
       v8::Isolate* pExternalIsolate = nullptr;
diff --git a/fpdfsdk/javascript/cjs_runtime.h b/fpdfsdk/javascript/cjs_runtime.h
index 12f902d..da7e384 100644
--- a/fpdfsdk/javascript/cjs_runtime.h
+++ b/fpdfsdk/javascript/cjs_runtime.h
@@ -42,7 +42,7 @@
   int ExecuteScript(const CFX_WideString& script,
                     CFX_WideString* info) override;
 
-  CPDFSDK_Environment* GetReaderApp() const { return m_pApp; }
+  CPDFSDK_Environment* GetReaderEnv() const { return m_pEnv; }
 
   // Returns true if the event isn't already found in the set.
   bool AddEventToSet(const FieldEvent& event);
@@ -63,7 +63,7 @@
   void DefineJSObjects();
 
   std::vector<std::unique_ptr<CJS_Context>> m_ContextArray;
-  CPDFSDK_Environment* const m_pApp;
+  CPDFSDK_Environment* const m_pEnv;
   CPDFSDK_Document* m_pDocument;
   bool m_bBlocking;
   bool m_isolateManaged;
diff --git a/fpdfsdk/javascript/global.cpp b/fpdfsdk/javascript/global.cpp
index 42ae8d5..b559539 100644
--- a/fpdfsdk/javascript/global.cpp
+++ b/fpdfsdk/javascript/global.cpp
@@ -33,7 +33,7 @@
   CJS_Runtime* pRuntime = static_cast<CJS_Runtime*>(pIRuntime);
   JSGlobalAlternate* pGlobal =
       static_cast<JSGlobalAlternate*>(GetEmbedObject());
-  pGlobal->Initial(pRuntime->GetReaderApp());
+  pGlobal->Initial(pRuntime->GetReaderEnv());
 }
 
 JSGlobalData::JSGlobalData()
@@ -49,16 +49,16 @@
 }
 
 JSGlobalAlternate::JSGlobalAlternate(CJS_Object* pJSObject)
-    : CJS_EmbedObj(pJSObject), m_pApp(nullptr) {}
+    : CJS_EmbedObj(pJSObject), m_pEnv(nullptr) {}
 
 JSGlobalAlternate::~JSGlobalAlternate() {
   DestroyGlobalPersisitentVariables();
   m_pGlobalData->Release();
 }
 
-void JSGlobalAlternate::Initial(CPDFSDK_Environment* pApp) {
-  m_pApp = pApp;
-  m_pGlobalData = CJS_GlobalData::GetRetainedInstance(pApp);
+void JSGlobalAlternate::Initial(CPDFSDK_Environment* pEnv) {
+  m_pEnv = pEnv;
+  m_pGlobalData = CJS_GlobalData::GetRetainedInstance(pEnv);
   UpdateGlobalPersistentVariables();
 }
 
diff --git a/fpdfsdk/javascript/global.h b/fpdfsdk/javascript/global.h
index 165cf3a..6a104be 100644
--- a/fpdfsdk/javascript/global.h
+++ b/fpdfsdk/javascript/global.h
@@ -47,7 +47,7 @@
   FX_BOOL DelProperty(IJS_Context* cc,
                       const FX_WCHAR* propname,
                       CFX_WideString& sError);
-  void Initial(CPDFSDK_Environment* pApp);
+  void Initial(CPDFSDK_Environment* pEnv);
 
  private:
   void UpdateGlobalPersistentVariables();
@@ -68,7 +68,7 @@
   std::map<CFX_ByteString, JSGlobalData*> m_mapGlobal;
   CFX_WideString m_sFilePath;
   CJS_GlobalData* m_pGlobalData;
-  CPDFSDK_Environment* m_pApp;
+  CPDFSDK_Environment* m_pEnv;
 };
 
 class CJS_Global : public CJS_Object {