Remove calls to idleNotification

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 2cf4fd8cecffcaa949d26ee64c8f173e6c986533..282bf1cf4e2974d72b27b7f0b9017c2321ed70b6 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -1552,8 +1552,11 @@ void RenderThreadImpl::WidgetHidden() {
 #if !defined(SYSTEM_NATIVELY_SIGNALS_MEMORY_PRESSURE)
     // TODO(vollick): Remove this this heavy-handed approach once we're polling
     // the real system memory pressure.
-    base::MemoryPressureListener::NotifyMemoryPressure(
-        base::MemoryPressureListener::MEMORY_PRESSURE_MODERATE);
+
+    // TODO(wfh): http://crbug.com/381820 remove this after testing whether
+    // this affects tabs hanging.
+    // base::MemoryPressureListener::NotifyMemoryPressure(
+    //     base::MemoryPressureListener::MEMORY_PRESSURE_MODERATE);
 #endif
     if (GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden())
       ScheduleIdleHandler(kInitialIdleHandlerDelayMs);