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 705937aef1cb97930a4a5c9c16d1a460a4036502..8dcd801246fe1823cf91488d35282d3c9d889ef4 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);