Make ScriptStreamer and dependents Oilpan friendly.

Source/core/inspector/InspectorDebuggerAgent.h

 /*
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010-2011 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef InspectorDebuggerAgent_h
 #define InspectorDebuggerAgent_h
 
+#include "bindings/core/v8/Nullable.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "core/InspectorFrontend.h"
 #include "core/frame/ConsoleTypes.h"
 #include "core/inspector/ConsoleAPITypes.h"
 #include "core/inspector/InspectorBaseAgent.h"
 #include "core/inspector/PromiseTracker.h"
 #include "core/inspector/ScriptBreakpoint.h"
 #include "core/inspector/ScriptDebugListener.h"
 #include "wtf/Forward.h"
@@ skipping 41 matching lines @@
 
     void init() final;
     void setFrontend(InspectorFrontend*) final;
     void clearFrontend() final;
     void restore() final;
 
     bool isPaused();
     void addMessageToConsole(ConsoleMessage*);
 
     String preprocessEventListener(LocalFrame*, const String& source, const String& url, const String& functionName);
-    PassOwnPtr<ScriptSourceCode> preprocess(LocalFrame*, const ScriptSourceCode&);
+    Nullable<ScriptSourceCode> preprocess(LocalFrame*, const ScriptSourceCode&);
 
     // Part of the protocol.
     void enable(ErrorString*) final;
     void disable(ErrorString*) final;
     void setBreakpointsActive(ErrorString*, bool active) final;
     void setSkipAllPauses(ErrorString*, bool skipped, const bool* untilReload) final;
 
     void setBreakpointByUrl(ErrorString*, int lineNumber, const String* optionalURL, const String* optionalURLRegex, const int* optionalColumnNumber, const String* optionalCondition, TypeBuilder::Debugger::BreakpointId*, RefPtr<TypeBuilder::Array<TypeBuilder::Debugger::Location> >& locations) final;
     void setBreakpoint(ErrorString*, const RefPtr<JSONObject>& location, const String* optionalCondition, TypeBuilder::Debugger::BreakpointId*, RefPtr<TypeBuilder::Debugger::Location>& actualLocation) final;
     void removeBreakpoint(ErrorString*, const String& breakpointId) final;
@@ skipping 186 matching lines @@
     RefPtrWillBeMember<AsyncCallChain> m_currentAsyncCallChain;
     unsigned m_nestedAsyncCallCount;
     bool m_performingAsyncStepIn;
     WillBeHeapVector<RawPtrWillBeMember<AsyncCallTrackingListener>> m_asyncCallTrackingListeners;
 };
 
 } // namespace blink
 
 
 #endif // InspectorDebuggerAgent_h