Remove calls to idleNotification

content/renderer/render_thread_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 1534 matching lines @@
 }
 
 void RenderThreadImpl::WidgetHidden() {
   DCHECK_LT(hidden_widget_count_, widget_count_);
   hidden_widget_count_++;
 
   if (widget_count_ && hidden_widget_count_ == widget_count_) {
 #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);
   }
 }
 
 void RenderThreadImpl::WidgetRestored() {
   DCHECK_GT(hidden_widget_count_, 0);
   hidden_widget_count_--;
 
   if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
     return;
   }
 
   ScheduleIdleHandler(kLongIdleHandlerDelayMs);
 }
 
 }  // namespace content