Low memory page navigation GC for low end devices

third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp

Index: third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
index bda519f1a5bd71f0ca1c1013e4219186aa5a134b..f212a2e920315aaf3a939a8e632172f097a2cff6 100644
--- a/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/WindowProxy.cpp
@@ -63,11 +63,15 @@ WindowProxy::WindowProxy(v8::Isolate* isolate,
       lifecycle_(Lifecycle::kContextIsUninitialized) {}
 
 void WindowProxy::ClearForClose() {
-  DisposeContext(Lifecycle::kFrameIsDetached);
+  DisposeContext(Lifecycle::kFrameIsDetached, false);
 }
 
 void WindowProxy::ClearForNavigation() {
-  DisposeContext(Lifecycle::kGlobalObjectIsDetached);
+  DisposeContext(Lifecycle::kGlobalObjectIsDetached, true);
+}
+
+void WindowProxy::ClearForSwap() {
+  DisposeContext(Lifecycle::kGlobalObjectIsDetached, false);
 }
 
 v8::Local<v8::Object> WindowProxy::GlobalProxyIfNotDetached() {