Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/bindings/v8/ScriptProfiler.cpp

 /*
  * Copyright (c) 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 59 matching lines @@
         return;
     v8::HandleScope handleScope(isolate);
     profiler->StartCpuProfiling(v8String(isolate, title), true);
 }
 
 PassRefPtr<ScriptProfile> ScriptProfiler::stop(const String& title)
 {
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     v8::CpuProfiler* profiler = isolate->GetCpuProfiler();
     if (!profiler)
-        return 0;
+        return nullptr;
     v8::HandleScope handleScope(isolate);
     const v8::CpuProfile* profile = profiler->StopCpuProfiling(v8String(isolate, title));
     if (!profile)
-        return 0;
+        return nullptr;
 
     String profileTitle = toCoreString(profile->GetTitle());
     double idleTime = 0.0;
     ProfileNameIdleTimeMap* profileNameIdleTimeMap = ScriptProfiler::currentProfileNameIdleTimeMap();
     ProfileNameIdleTimeMap::iterator profileIdleTime = profileNameIdleTimeMap->find(profileTitle);
     if (profileIdleTime != profileNameIdleTimeMap->end()) {
         idleTime = profileIdleTime->value * 1000.0;
         profileNameIdleTimeMap->remove(profileIdleTime);
     }
 
@@ skipping 131 matching lines @@
 {
     v8::Isolate::GetCurrent()->GetHeapProfiler()->StopTrackingHeapObjects();
 }
 
 // FIXME: This method should receive a ScriptState, from which we should retrieve an Isolate.
 PassRefPtr<ScriptHeapSnapshot> ScriptProfiler::takeHeapSnapshot(const String& title, HeapSnapshotProgress* control)
 {
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     v8::HeapProfiler* profiler = isolate->GetHeapProfiler();
     if (!profiler)
-        return 0;
+        return nullptr;
     v8::HandleScope handleScope(isolate);
     ASSERT(control);
     ActivityControlAdapter adapter(control);
     GlobalObjectNameResolver resolver;
     const v8::HeapSnapshot* snapshot = profiler->TakeHeapSnapshot(v8String(isolate, title), &adapter, &resolver);
-    return snapshot ? ScriptHeapSnapshot::create(snapshot) : 0;
+    return snapshot ? ScriptHeapSnapshot::create(snapshot) : nullptr;
 }
 
 static v8::RetainedObjectInfo* retainedDOMInfo(uint16_t classId, v8::Handle<v8::Value> wrapper)
 {
     ASSERT(classId == v8DOMNodeClassId);
     if (!wrapper->IsObject())
         return 0;
     Node* node = V8Node::toNative(wrapper.As<v8::Object>());
     return node ? new RetainedDOMInfo(node) : 0;
 }
@@ skipping 48 matching lines @@
 }
 
 void ScriptProfiler::setIdle(bool isIdle)
 {
     v8::Isolate* isolate = v8::Isolate::GetCurrent();
     if (v8::CpuProfiler* profiler = isolate->GetCpuProfiler())
         profiler->SetIdle(isIdle);
 }
 
 } // namespace WebCore