Tidy FXJS_V8, backfill tests.

Move checks performed as part of JS_Value's object and array
handling back into FXJS, to ease removal of JS_Value in the future.

Remove some convenience routines in FXJS for objects, to shrink
API to be covered during testing.

Change some naming (number => double, string => widestring) to
make it clearer when there is a C++ type involved.

BUG=

Review-Url: https://codereview.chromium.org/2637503002
diff --git a/fpdfsdk/javascript/Document.cpp b/fpdfsdk/javascript/Document.cpp
index 79d68ec..4bf1afd 100644
--- a/fpdfsdk/javascript/Document.cpp
+++ b/fpdfsdk/javascript/Document.cpp
@@ -801,15 +801,18 @@
   CJS_Runtime* pRuntime = pContext->GetJSRuntime();
 
   v8::Local<v8::Object> pObj = pRuntime->NewFxDynamicObj(-1);
-  pRuntime->PutObjectString(pObj, L"Author", cwAuthor);
-  pRuntime->PutObjectString(pObj, L"Title", cwTitle);
-  pRuntime->PutObjectString(pObj, L"Subject", cwSubject);
-  pRuntime->PutObjectString(pObj, L"Keywords", cwKeywords);
-  pRuntime->PutObjectString(pObj, L"Creator", cwCreator);
-  pRuntime->PutObjectString(pObj, L"Producer", cwProducer);
-  pRuntime->PutObjectString(pObj, L"CreationDate", cwCreationDate);
-  pRuntime->PutObjectString(pObj, L"ModDate", cwModDate);
-  pRuntime->PutObjectString(pObj, L"Trapped", cwTrapped);
+  pRuntime->PutObjectProperty(pObj, L"Author", pRuntime->NewString(cwAuthor));
+  pRuntime->PutObjectProperty(pObj, L"Title", pRuntime->NewString(cwTitle));
+  pRuntime->PutObjectProperty(pObj, L"Subject", pRuntime->NewString(cwSubject));
+  pRuntime->PutObjectProperty(pObj, L"Keywords",
+                              pRuntime->NewString(cwKeywords));
+  pRuntime->PutObjectProperty(pObj, L"Creator", pRuntime->NewString(cwCreator));
+  pRuntime->PutObjectProperty(pObj, L"Producer",
+                              pRuntime->NewString(cwProducer));
+  pRuntime->PutObjectProperty(pObj, L"CreationDate",
+                              pRuntime->NewString(cwCreationDate));
+  pRuntime->PutObjectProperty(pObj, L"ModDate", pRuntime->NewString(cwModDate));
+  pRuntime->PutObjectProperty(pObj, L"Trapped", pRuntime->NewString(cwTrapped));
 
   // It's to be compatible to non-standard info dictionary.
   for (const auto& it : *pDictionary) {
@@ -817,11 +820,14 @@
     CPDF_Object* pValueObj = it.second.get();
     CFX_WideString wsKey = CFX_WideString::FromUTF8(bsKey.AsStringC());
     if (pValueObj->IsString() || pValueObj->IsName()) {
-      pRuntime->PutObjectString(pObj, wsKey, pValueObj->GetUnicodeText());
+      pRuntime->PutObjectProperty(
+          pObj, wsKey, pRuntime->NewString(pValueObj->GetUnicodeText()));
     } else if (pValueObj->IsNumber()) {
-      pRuntime->PutObjectNumber(pObj, wsKey, (float)pValueObj->GetNumber());
+      pRuntime->PutObjectProperty(pObj, wsKey,
+                                  pRuntime->NewNumber(pValueObj->GetNumber()));
     } else if (pValueObj->IsBoolean()) {
-      pRuntime->PutObjectBoolean(pObj, wsKey, !!pValueObj->GetInteger());
+      pRuntime->PutObjectProperty(
+          pObj, wsKey, pRuntime->NewBoolean(!!pValueObj->GetInteger()));
     }
   }
   vp << pObj;
diff --git a/fpdfsdk/javascript/JS_Value.cpp b/fpdfsdk/javascript/JS_Value.cpp
index c99affb..7900914 100644
--- a/fpdfsdk/javascript/JS_Value.cpp
+++ b/fpdfsdk/javascript/JS_Value.cpp
@@ -88,7 +88,7 @@
 }
 
 double CJS_Value::ToDouble(CJS_Runtime* pRuntime) const {
-  return pRuntime->ToNumber(m_pValue);
+  return pRuntime->ToDouble(m_pValue);
 }
 
 float CJS_Value::ToFloat(CJS_Runtime* pRuntime) const {
@@ -105,7 +105,7 @@
 }
 
 CFX_WideString CJS_Value::ToCFXWideString(CJS_Runtime* pRuntime) const {
-  return pRuntime->ToString(m_pValue);
+  return pRuntime->ToWideString(m_pValue);
 }
 
 CFX_ByteString CJS_Value::ToCFXByteString(CJS_Runtime* pRuntime) const {
@@ -117,9 +117,7 @@
 }
 
 v8::Local<v8::Array> CJS_Value::ToV8Array(CJS_Runtime* pRuntime) const {
-  if (IsArrayObject())
-    return v8::Local<v8::Array>::Cast(pRuntime->ToObject(m_pValue));
-  return v8::Local<v8::Array>();
+  return pRuntime->ToArray(m_pValue);
 }
 
 void CJS_Value::SetNull(CJS_Runtime* pRuntime) {
@@ -360,7 +358,7 @@
 CJS_Date::~CJS_Date() {}
 
 bool CJS_Date::IsValidDate(CJS_Runtime* pRuntime) const {
-  return !m_pDate.IsEmpty() && !JS_PortIsNan(pRuntime->ToNumber(m_pDate));
+  return !m_pDate.IsEmpty() && !JS_PortIsNan(pRuntime->ToDouble(m_pDate));
 }
 
 void CJS_Date::Attach(v8::Local<v8::Date> pDate) {
@@ -371,7 +369,7 @@
   if (!IsValidDate(pRuntime))
     return 0;
 
-  return JS_GetYearFromTime(JS_LocalTime(pRuntime->ToNumber(m_pDate)));
+  return JS_GetYearFromTime(JS_LocalTime(pRuntime->ToDouble(m_pDate)));
 }
 
 void CJS_Date::SetYear(CJS_Runtime* pRuntime, int iYear) {
@@ -384,7 +382,7 @@
   if (!IsValidDate(pRuntime))
     return 0;
 
-  return JS_GetMonthFromTime(JS_LocalTime(pRuntime->ToNumber(m_pDate)));
+  return JS_GetMonthFromTime(JS_LocalTime(pRuntime->ToDouble(m_pDate)));
 }
 
 void CJS_Date::SetMonth(CJS_Runtime* pRuntime, int iMonth) {
@@ -397,7 +395,7 @@
   if (!IsValidDate(pRuntime))
     return 0;
 
-  return JS_GetDayFromTime(JS_LocalTime(pRuntime->ToNumber(m_pDate)));
+  return JS_GetDayFromTime(JS_LocalTime(pRuntime->ToDouble(m_pDate)));
 }
 
 void CJS_Date::SetDay(CJS_Runtime* pRuntime, int iDay) {
@@ -410,7 +408,7 @@
   if (!IsValidDate(pRuntime))
     return 0;
 
-  return JS_GetHourFromTime(JS_LocalTime(pRuntime->ToNumber(m_pDate)));
+  return JS_GetHourFromTime(JS_LocalTime(pRuntime->ToDouble(m_pDate)));
 }
 
 void CJS_Date::SetHours(CJS_Runtime* pRuntime, int iHours) {
@@ -423,7 +421,7 @@
   if (!IsValidDate(pRuntime))
     return 0;
 
-  return JS_GetMinFromTime(JS_LocalTime(pRuntime->ToNumber(m_pDate)));
+  return JS_GetMinFromTime(JS_LocalTime(pRuntime->ToDouble(m_pDate)));
 }
 
 void CJS_Date::SetMinutes(CJS_Runtime* pRuntime, int minutes) {
@@ -436,7 +434,7 @@
   if (!IsValidDate(pRuntime))
     return 0;
 
-  return JS_GetSecFromTime(JS_LocalTime(pRuntime->ToNumber(m_pDate)));
+  return JS_GetSecFromTime(JS_LocalTime(pRuntime->ToDouble(m_pDate)));
 }
 
 void CJS_Date::SetSeconds(CJS_Runtime* pRuntime, int seconds) {
@@ -446,11 +444,12 @@
 }
 
 double CJS_Date::ToDouble(CJS_Runtime* pRuntime) const {
-  return !m_pDate.IsEmpty() ? pRuntime->ToNumber(m_pDate) : 0.0;
+  return !m_pDate.IsEmpty() ? pRuntime->ToDouble(m_pDate) : 0.0;
 }
 
 CFX_WideString CJS_Date::ToString(CJS_Runtime* pRuntime) const {
-  return !m_pDate.IsEmpty() ? pRuntime->ToString(m_pDate) : CFX_WideString();
+  return !m_pDate.IsEmpty() ? pRuntime->ToWideString(m_pDate)
+                            : CFX_WideString();
 }
 
 v8::Local<v8::Date> CJS_Date::ToV8Date(CJS_Runtime* pRuntime) const {
diff --git a/fpdfsdk/javascript/global.cpp b/fpdfsdk/javascript/global.cpp
index c2d3586..aca8697 100644
--- a/fpdfsdk/javascript/global.cpp
+++ b/fpdfsdk/javascript/global.cpp
@@ -192,41 +192,41 @@
         SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::NUMBER,
                            pData->data.dData, false, "",
                            v8::Local<v8::Object>(), pData->bPersistent == 1);
-        pRuntime->PutObjectNumber(m_pJSObject->ToV8Object(),
-                                  pData->data.sKey.UTF8Decode(),
-                                  pData->data.dData);
+        pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(),
+                                    pData->data.sKey.UTF8Decode(),
+                                    pRuntime->NewNumber(pData->data.dData));
         break;
       case JS_GlobalDataType::BOOLEAN:
         SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::BOOLEAN, 0,
-                           (bool)(pData->data.bData == 1), "",
-                           v8::Local<v8::Object>(), pData->bPersistent == 1);
-        pRuntime->PutObjectBoolean(m_pJSObject->ToV8Object(),
-                                   pData->data.sKey.UTF8Decode(),
-                                   (bool)(pData->data.bData == 1));
+                           pData->data.bData == 1, "", v8::Local<v8::Object>(),
+                           pData->bPersistent == 1);
+        pRuntime->PutObjectProperty(
+            m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(),
+            pRuntime->NewBoolean(pData->data.bData == 1));
         break;
       case JS_GlobalDataType::STRING:
         SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::STRING, 0,
                            false, pData->data.sData, v8::Local<v8::Object>(),
                            pData->bPersistent == 1);
-        pRuntime->PutObjectString(m_pJSObject->ToV8Object(),
-                                  pData->data.sKey.UTF8Decode(),
-                                  pData->data.sData.UTF8Decode());
+        pRuntime->PutObjectProperty(
+            m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(),
+            pRuntime->NewString(pData->data.sData.UTF8Decode()));
         break;
       case JS_GlobalDataType::OBJECT: {
         v8::Local<v8::Object> pObj = pRuntime->NewFxDynamicObj(-1);
-
         PutObjectProperty(pObj, &pData->data);
         SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::OBJECT, 0,
                            false, "", pObj, pData->bPersistent == 1);
-        pRuntime->PutObjectObject(m_pJSObject->ToV8Object(),
-                                  pData->data.sKey.UTF8Decode(), pObj);
+        pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(),
+                                    pData->data.sKey.UTF8Decode(), pObj);
       } break;
       case JS_GlobalDataType::NULLOBJ:
         SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::NULLOBJ, 0,
                            false, "", v8::Local<v8::Object>(),
                            pData->bPersistent == 1);
-        pRuntime->PutObjectNull(m_pJSObject->ToV8Object(),
-                                pData->data.sKey.UTF8Decode());
+        pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(),
+                                    pData->data.sKey.UTF8Decode(),
+                                    pRuntime->NewNull());
         break;
     }
   }
@@ -282,7 +282,7 @@
         CJS_KeyValue* pObjElement = new CJS_KeyValue;
         pObjElement->nType = JS_GlobalDataType::NUMBER;
         pObjElement->sKey = sKey;
-        pObjElement->dData = pRuntime->ToNumber(v);
+        pObjElement->dData = pRuntime->ToDouble(v);
         array.Add(pObjElement);
       } break;
       case CJS_Value::VT_boolean: {
@@ -329,24 +329,26 @@
     CJS_KeyValue* pObjData = pData->objData.GetAt(i);
     switch (pObjData->nType) {
       case JS_GlobalDataType::NUMBER:
-        pRuntime->PutObjectNumber(pObj, pObjData->sKey.UTF8Decode(),
-                                  pObjData->dData);
+        pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
+                                    pRuntime->NewNumber(pObjData->dData));
         break;
       case JS_GlobalDataType::BOOLEAN:
-        pRuntime->PutObjectBoolean(pObj, pObjData->sKey.UTF8Decode(),
-                                   pObjData->bData == 1);
+        pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
+                                    pRuntime->NewBoolean(pObjData->bData == 1));
         break;
       case JS_GlobalDataType::STRING:
-        pRuntime->PutObjectString(pObj, pObjData->sKey.UTF8Decode(),
-                                  pObjData->sData.UTF8Decode());
+        pRuntime->PutObjectProperty(
+            pObj, pObjData->sKey.UTF8Decode(),
+            pRuntime->NewString(pObjData->sData.UTF8Decode()));
         break;
       case JS_GlobalDataType::OBJECT: {
         v8::Local<v8::Object> pNewObj = pRuntime->NewFxDynamicObj(-1);
         PutObjectProperty(pNewObj, pObjData);
-        pRuntime->PutObjectObject(pObj, pObjData->sKey.UTF8Decode(), pNewObj);
+        pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(), pNewObj);
       } break;
       case JS_GlobalDataType::NULLOBJ:
-        pRuntime->PutObjectNull(pObj, pObjData->sKey.UTF8Decode());
+        pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
+                                    pRuntime->NewNull());
         break;
     }
   }