src/third_party/WebKit/Source/modules/performance/WorkerGlobalScopePerformance.cpp

   1 /*
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  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
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  30
  31 #include "config.h"
  32
  33 #include "modules/performance/WorkerGlobalScopePerformance.h"
  34
  35 #include "core/workers/WorkerGlobalScope.h"
  36 #include "modules/performance/WorkerPerformance.h"
  37
  38 namespace WebCore {
  39
  40 WorkerGlobalScopePerformance::WorkerGlobalScopePerformance()
  41 {
  42 }
  43
  44 const char* WorkerGlobalScopePerformance::supplementName()
  45 {
  46     return "WorkerGlobalScopePerformance";
  47 }
  48
  49 WorkerGlobalScopePerformance& WorkerGlobalScopePerformance::from(WorkerGlobalScope& context)
  50 {
  51     WorkerGlobalScopePerformance* supplement = static_cast<WorkerGlobalScopePerformance*>(WillBeHeapSupplement<WorkerGlobalScope>::from(context, supplementName()));
  52     if (!supplement) {
  53         supplement = new WorkerGlobalScopePerformance();
  54         provideTo(context, supplementName(), adoptPtrWillBeNoop(supplement));
  55     }
  56     return *supplement;
  57 }
  58
  59 WorkerPerformance* WorkerGlobalScopePerformance::performance(WorkerGlobalScope& context)
  60 {
  61     return from(context).performance();
  62 }
  63
  64 WorkerPerformance* WorkerGlobalScopePerformance::performance()
  65 {
  66     if (!m_performance)
  67         m_performance = WorkerPerformance::create();
  68     return m_performance.get();
  69 }
  70
  71 void WorkerGlobalScopePerformance::trace(Visitor* visitor)
  72 {
  73     visitor->trace(m_performance);
  74     WillBeHeapSupplement<WorkerGlobalScope>::trace(visitor);
  75 }
  76
  77 } // namespace WebCore