If under stack pressure, do not enable eager stack use.

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

Index: third_party/WebKit/Source/platform/heap/StackFrameDepth.cpp
diff --git a/third_party/WebKit/Source/platform/heap/StackFrameDepth.cpp b/third_party/WebKit/Source/platform/heap/StackFrameDepth.cpp
index 2fc15209c3d8663a448dbc7092d79d88be856e40..8412e4ed8ed30bccd9d9823fae2b7616445807e8 100644
--- a/third_party/WebKit/Source/platform/heap/StackFrameDepth.cpp
+++ b/third_party/WebKit/Source/platform/heap/StackFrameDepth.cpp
@@ -71,6 +71,12 @@ void StackFrameDepth::enableStackLimit()
     size_t stackRoom = stackSize - kStackRoomSize;
     RELEASE_ASSERT(stackBase > reinterpret_cast<Address>(stackRoom));
     s_stackFrameLimit = reinterpret_cast<uintptr_t>(stackBase - stackRoom);
+
+#if ENABLE(ASSERT)
+    // If current stack use is already exceeding estimated limit, mark as disabled.
+    if (!isSafeToRecurse())
+        s_isEnabled = false;
+#endif
 }
 
 size_t StackFrameDepth::getUnderestimatedStackSize()