bindings: Use Maybe APIs in V8ScriptRunner (part 1)

Source/bindings/core/v8/ScriptController.cpp

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. 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
@@ skipping 157 matching lines @@
         if (frame()->settings())
             v8CacheOptions = frame()->settings()->v8CacheOptions();
 
         // Isolate exceptions that occur when compiling and executing
         // the code. These exceptions should not interfere with
         // javascript code we might evaluate from C++ when returning
         // from here.
         v8::TryCatch tryCatch;
         tryCatch.SetVerbose(true);
 
-        v8::Handle<v8::Script> script = V8ScriptRunner::compileScript(source, isolate(), corsStatus, v8CacheOptions);
+        v8::Local<v8::Script> script;
+        if (!V8ScriptRunner::compileScript(source, isolate(), corsStatus, v8CacheOptions).ToLocal(&script))
+            return result;
 
         if (compilationFinishTime) {
             *compilationFinishTime = WTF::monotonicallyIncreasingTime();
         }
         // Keep LocalFrame (and therefore ScriptController) alive.
         RefPtrWillBeRawPtr<LocalFrame> protect(frame());
-        result = V8ScriptRunner::runCompiledScript(isolate(), script, frame()->document());
+        if (!V8ScriptRunner::runCompiledScript(isolate(), script, frame()->document()).ToLocal(&result))
+            return result;
         ASSERT(!tryCatch.HasCaught() || result.IsEmpty());
     }
 
     InspectorInstrumentation::didEvaluateScript(cookie);
     TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "UpdateCounters", "data", InspectorUpdateCountersEvent::data());
 
     return result;
 }
 
 bool ScriptController::initializeMainWorld()
@@ skipping 388 matching lines @@
         resultArray->Set(i, evaluationResult);
     }
 
     if (results) {
         for (size_t i = 0; i < resultArray->Length(); ++i)
             results->append(resultArray->Get(i));
     }
 }
 
 } // namespace blink