Support re-reading scope variables in protocol and on backed.

Source/core/inspector/InjectedScript.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 124 matching lines @@
         *errorString = "Internal error";
         return;
     }
     if (resultValue->type() == JSONValue::TypeString) {
         resultValue->asString(errorString);
         return;
     }
     // Normal return.
 }
 
+void InjectedScript::getCallFrameScopes(ErrorString* errorString, const ScriptValue& callFrames, const String& callFrameId, RefPtr<TypeBuilder::Array<TypeBuilder::Debugger::Scope> >* result)
+{
+    ScriptFunctionCall function(injectedScriptObject(), "getCallFrameScopes");
+    function.appendArgument(callFrames);
+    function.appendArgument(callFrameId);
+    RefPtr<JSONValue> resultValue;
+    makeCall(function, &resultValue);
+    if (!resultValue || resultValue->type() != JSONValue::TypeArray) {
+        if (!resultValue->asString(errorString))
+            *errorString = "Internal error";
+        return;
+    }
+    *result = TypeBuilder::Array<TypeBuilder::Debugger::Scope>::runtimeCast(resultValue);
+}
+
+
 void InjectedScript::getFunctionDetails(ErrorString* errorString, const String& functionId, RefPtr<FunctionDetails>* result)
 {
     ScriptFunctionCall function(injectedScriptObject(), "getFunctionDetails");
     function.appendArgument(functionId);
     RefPtr<JSONValue> resultValue;
     makeCall(function, &resultValue);
     if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
         if (!resultValue->asString(errorString))
             *errorString = "Internal error";
         return;
@@ skipping 140 matching lines @@
     ASSERT(!hadException);
 }
 
 ScriptValue InjectedScript::nodeAsScriptValue(Node* node)
 {
     return InjectedScriptHost::nodeAsScriptValue(scriptState(), node);
 }
 
 } // namespace WebCore