[Bindings] Move some private symbols from V8HiddenValue to V8PrivateProperty

third_party/WebKit/Source/bindings/core/v8/custom/V8PopStateEventCustom.cpp

Index: third_party/WebKit/Source/bindings/core/v8/custom/V8PopStateEventCustom.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/custom/V8PopStateEventCustom.cpp b/third_party/WebKit/Source/bindings/core/v8/custom/V8PopStateEventCustom.cpp
index 141a8426f20404c2afa61835d9fdbd345b6510c0..d7513745f5c28c733f67e6ec1629ded7bf60d3bc 100644
--- a/third_party/WebKit/Source/bindings/core/v8/custom/V8PopStateEventCustom.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/custom/V8PopStateEventCustom.cpp
@@ -32,8 +32,8 @@
 
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/core/v8/SerializedScriptValueFactory.h"
-#include "bindings/core/v8/V8HiddenValue.h"
 #include "bindings/core/v8/V8History.h"
+#include "bindings/core/v8/V8PrivateProperty.h"
 #include "core/events/PopStateEvent.h"
 #include "core/frame/History.h"
 
@@ -44,9 +44,8 @@ namespace blink {
 static v8::Local<v8::Value> cacheState(ScriptState* scriptState,
                                        v8::Local<v8::Object> popStateEvent,
                                        v8::Local<v8::Value> state) {
-  V8HiddenValue::setHiddenValue(scriptState, popStateEvent,
-                                V8HiddenValue::state(scriptState->isolate()),
-                                state);
+  V8PrivateProperty::getScriptState(scriptState->isolate())
+      .set(scriptState->context(), popStateEvent, state);
   return state;
 }
 
@@ -54,8 +53,10 @@ void V8PopStateEvent::stateAttributeGetterCustom(
     const v8::FunctionCallbackInfo<v8::Value>& info) {
   v8::Isolate* isolate = info.GetIsolate();
   ScriptState* scriptState = ScriptState::current(isolate);
-  v8::Local<v8::Value> result = V8HiddenValue::getHiddenValue(
-      scriptState, info.Holder(), V8HiddenValue::state(isolate));
+  v8::Local<v8::Context> context = scriptState->context();
+  V8PrivateProperty::Symbol stateSymbol =
+      V8PrivateProperty::getScriptState(isolate);
+  v8::Local<v8::Value> result = stateSymbol.get(context, info.Holder());
 
   if (!result.IsEmpty()) {
     v8SetReturnValue(info, result);
@@ -93,17 +94,13 @@ void V8PopStateEvent::stateAttributeGetterCustom(
     if (v8HistoryValue.IsEmpty())
       return;
     v8::Local<v8::Object> v8History = v8HistoryValue.As<v8::Object>();
-    if (!history->stateChanged()) {
-      result = V8HiddenValue::getHiddenValue(scriptState, v8History,
-                                             V8HiddenValue::state(isolate));
-      if (!result.IsEmpty()) {
-        v8SetReturnValue(info, cacheState(scriptState, info.Holder(), result));
-        return;
-      }
+    if (!history->stateChanged() && stateSymbol.hasValue(context, v8History)) {
+      v8SetReturnValue(info, cacheState(scriptState, info.Holder(),
+                                        stateSymbol.get(context, v8History)));
+      return;
     }
     result = event->serializedState()->deserialize(isolate);
-    V8HiddenValue::setHiddenValue(scriptState, v8History,
-                                  V8HiddenValue::state(isolate), result);
+    stateSymbol.set(context, v8History, result);
   } else {
     result = event->serializedState()->deserialize(isolate);
   }