Make breakpoints not crash sky

sky/engine/bindings/core/v8/V8Binding.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 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 651 matching lines @@
         // Unfortunately, when processing script from a plug-in, we might not
         // have a calling context. In those cases, we fall back to the
         // entered context.
         context = isolate->GetEnteredContext();
     }
     return toExecutionContext(context);
 }
 
 LocalFrame* toFrameIfNotDetached(v8::Handle<v8::Context> context)
 {
-    // FIXME(sky): remove.
-    LocalDOMWindow* window = toDOMWindow(context);
-    return window->frame();
+    return toDOMWindow(context)->frame();
 }
 
 v8::Local<v8::Context> toV8Context(ExecutionContext* context, DOMWrapperWorld& world)
 {
     ASSERT(context);
     if (LocalFrame* frame = toDocument(context)->frame())
         return frame->script().windowProxy(world)->context();
     return v8::Local<v8::Context>();
 }
 
@@ skipping 172 matching lines @@
 PassRefPtr<TraceEvent::ConvertableToTraceFormat> devToolsTraceEventData(ExecutionContext* context, v8::Handle<v8::Function> function, v8::Isolate* isolate)
 {
     int scriptId = 0;
     String resourceName;
     int lineNumber = 1;
     GetDevToolsFunctionInfo(function, isolate, scriptId, resourceName, lineNumber);
     return InspectorFunctionCallEvent::data(context, scriptId, resourceName, lineNumber);
 }
 
 } // namespace blink