Expire resources in ResourcePool after non-use

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 5b9d781dc83df56a5ed2c82b935d37365782aa0a..9f7c5281a23e2213c6399ed473d80a6ca1c53230 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -375,18 +375,6 @@ void RenderWidgetCompositor::Initialize() {
   settings.invert_viewport_scroll_order =
       cmd->HasSwitch(switches::kInvertViewportScrollOrder);
 
-  if (cmd->HasSwitch(cc::switches::kMaxUnusedResourceMemoryUsagePercentage)) {
-    int max_unused_resource_memory_percentage;
-    if (GetSwitchValueAsInt(
-            *cmd,
-            cc::switches::kMaxUnusedResourceMemoryUsagePercentage,
-            0, 100,
-            &max_unused_resource_memory_percentage)) {
-      settings.max_unused_resource_memory_percentage =
-          max_unused_resource_memory_percentage;
-    }
-  }
-
   settings.strict_layer_property_change_checking =
       cmd->HasSwitch(cc::switches::kStrictLayerPropertyChangeChecking);