| Index: third_party/WebKit/Source/core/inspector/InstanceCounters.h
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| diff --git a/third_party/WebKit/Source/core/inspector/InstanceCounters.h b/third_party/WebKit/Source/core/inspector/InstanceCounters.h
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| index 691dd1c58a64b25e1874d23ed5a51226846480d6..e23e850852cc4a420e0d9f25e6eb0b21af9dcb59 100644
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| --- a/third_party/WebKit/Source/core/inspector/InstanceCounters.h
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| +++ b/third_party/WebKit/Source/core/inspector/InstanceCounters.h
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| @@ -33,6 +33,7 @@
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|  
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|  #include "core/CoreExport.h"
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|  #include "wtf/Allocator.h"
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| +#include "wtf/Atomics.h"
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|  
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|  #if ENABLE(ASSERT)
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|  #endif
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| @@ -60,14 +61,12 @@ public:
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|  
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|      static inline void incrementCounter(CounterType type)
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|      {
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| -        ASSERT(isMainThread());
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| -        ++s_counters[type];
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| +        atomicIncrement(&s_counters[type]);
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|      }
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|  
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|      static inline void decrementCounter(CounterType type)
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|      {
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| -        ASSERT(isMainThread());
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| -        --s_counters[type];
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| +        atomicDecrement(&s_counters[type]);
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|      }
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|  
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|      CORE_EXPORT static int counterValue(CounterType);
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| 
 |