Do not initiate Oilpan GC if under known stack pressure.

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

Index: third_party/WebKit/Source/platform/heap/ThreadState.cpp
diff --git a/third_party/WebKit/Source/platform/heap/ThreadState.cpp b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
index 9de5549437e8814087cb2df86d36621584ab65f4..1065cebb9701c4f3e2c08766b2ace65f143598fe 100644
--- a/third_party/WebKit/Source/platform/heap/ThreadState.cpp
+++ b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
@@ -626,6 +626,11 @@ void ThreadState::willStartV8GC(BlinkGC::V8GCType gcType)
     if (gcType == BlinkGC::V8MajorGC)
         completeSweep();
 
+    // If stack room is currently at a high premium, do not initiate an
+    // Oilpan GC.
+    if (StackFrameDepth::hasInsufficientStackForGC())
+        return;
+
     // The fact that the PageNavigation GC is scheduled means that there is
     // a dead frame. In common cases, a sequence of Oilpan's GC => V8 GC =>
     // Oilpan's GC is needed to collect the dead frame. So we force the