Apply script preprocessor to Web page scripts only.

Source/bindings/v8/custom/V8InjectedScriptHostCustom.cpp

 /*
  * Copyright (C) 2007-2011 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 288 matching lines @@
 
 v8::Handle<v8::Value> V8InjectedScriptHost::evaluateMethodCustom(const v8::Arguments& args)
 {
     if (args.Length() < 1)
         return v8::ThrowException(v8::Exception::Error(v8::String::New("One argument expected.")));
 
     v8::Handle<v8::String> expression = args[0]->ToString();
     if (expression.IsEmpty())
         return v8::ThrowException(v8::Exception::Error(v8::String::New("The argument must be a string.")));
 
+    // Mark the context as temporarily used by debugger.
+    V8PerContextDebugData::SystemScope systemScope(v8::Context::GetCurrent());
+
     v8::Handle<v8::Script> script = v8::Script::Compile(expression);
     if (script.IsEmpty()) // Return immediately in case of exception to let the caller handle it.
         return v8::Handle<v8::Value>();
     return script->Run();
 }
 
 v8::Handle<v8::Value> V8InjectedScriptHost::setFunctionVariableValueMethodCustom(const v8::Arguments& args)
 {
     v8::Handle<v8::Value> functionValue = args[0];
     int scopeIndex = args[1]->Int32Value();
     String variableName = toWebCoreStringWithUndefinedOrNullCheck(args[2]);
     v8::Handle<v8::Value> newValue = args[3];
 
     InjectedScriptHost* host = V8InjectedScriptHost::toNative(args.Holder());
     ScriptDebugServer& debugServer = host->scriptDebugServer();
     return debugServer.setFunctionVariableValue(functionValue, scopeIndex, variableName, newValue);
 }
 
 
 } // namespace WebCore