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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
3 * Copyright (C) 2012 Intel Inc. All rights reserved. | 3 * Copyright (C) 2012 Intel Inc. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions are | 6 * modification, are permitted provided that the following conditions are |
7 * met: | 7 * met: |
8 * | 8 * |
9 * * Redistributions of source code must retain the above copyright | 9 * * Redistributions of source code must retain the above copyright |
10 * notice, this list of conditions and the following disclaimer. | 10 * notice, this list of conditions and the following disclaimer. |
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41 #include "platform/weborigin/SecurityOrigin.h" | 41 #include "platform/weborigin/SecurityOrigin.h" |
42 #include "wtf/CurrentTime.h" | 42 #include "wtf/CurrentTime.h" |
43 | 43 |
44 namespace WebCore { | 44 namespace WebCore { |
45 | 45 |
46 static const size_t defaultResourceTimingBufferSize = 150; | 46 static const size_t defaultResourceTimingBufferSize = 150; |
47 | 47 |
48 Performance::Performance(LocalFrame* frame) | 48 Performance::Performance(LocalFrame* frame) |
49 : DOMWindowProperty(frame) | 49 : DOMWindowProperty(frame) |
50 , m_resourceTimingBufferSize(defaultResourceTimingBufferSize) | 50 , m_resourceTimingBufferSize(defaultResourceTimingBufferSize) |
51 , m_referenceTime(frame->document()->loader()->timing()->referenceMonotonicT
ime()) | 51 , m_referenceTime(frame->host() ? frame->document()->loader()->timing()->ref
erenceMonotonicTime() : 0.0) |
52 , m_userTiming(nullptr) | 52 , m_userTiming(nullptr) |
53 { | 53 { |
54 ASSERT(m_referenceTime); | |
55 ScriptWrappable::init(this); | 54 ScriptWrappable::init(this); |
56 } | 55 } |
57 | 56 |
58 Performance::~Performance() | 57 Performance::~Performance() |
59 { | 58 { |
60 } | 59 } |
61 | 60 |
62 const AtomicString& Performance::interfaceName() const | 61 const AtomicString& Performance::interfaceName() const |
63 { | 62 { |
64 return EventTargetNames::Performance; | 63 return EventTargetNames::Performance; |
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278 | 277 |
279 void Performance::trace(Visitor* visitor) | 278 void Performance::trace(Visitor* visitor) |
280 { | 279 { |
281 visitor->trace(m_navigation); | 280 visitor->trace(m_navigation); |
282 visitor->trace(m_timing); | 281 visitor->trace(m_timing); |
283 visitor->trace(m_resourceTimingBuffer); | 282 visitor->trace(m_resourceTimingBuffer); |
284 visitor->trace(m_userTiming); | 283 visitor->trace(m_userTiming); |
285 } | 284 } |
286 | 285 |
287 } // namespace WebCore | 286 } // namespace WebCore |
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