Remove SafePointAwareMutexLocker

third_party/WebKit/Source/platform/heap/SafePoint.cpp

Index: third_party/WebKit/Source/platform/heap/SafePoint.cpp
diff --git a/third_party/WebKit/Source/platform/heap/SafePoint.cpp b/third_party/WebKit/Source/platform/heap/SafePoint.cpp
index b2e1958304b31cd0984837ba3a012fbb1208bc4b..555a660014c0466612a61d0dae0a94a5cc69a33a 100644
--- a/third_party/WebKit/Source/platform/heap/SafePoint.cpp
+++ b/third_party/WebKit/Source/platform/heap/SafePoint.cpp
@@ -24,9 +24,7 @@ void SafePointBarrier::enterSafePoint(ThreadState* state) {
   pushAllRegisters(this, state, enterSafePointAfterPushRegisters);
 }
 
-void SafePointBarrier::leaveSafePoint(ThreadState* state,
-                                      SafePointAwareMutexLocker* locker) {
-}
+void SafePointBarrier::leaveSafePoint() {}
 
 void SafePointBarrier::doEnterSafePoint(ThreadState* state,
                                         intptr_t* stackEnd) {