Set the minimum timer interval on a per-page basis, and adjust it when...

webkit/glue/webpreferences.cc

Index: webkit/glue/webpreferences.cc
===================================================================
--- webkit/glue/webpreferences.cc	(revision 75215)
+++ webkit/glue/webpreferences.cc	(working copy)
@@ -70,7 +70,8 @@
       accelerated_2d_canvas_enabled(false),
       accelerated_plugins_enabled(false),
       memory_info_enabled(false),
-      interactive_form_validation_enabled(true) {
+      interactive_form_validation_enabled(true),
+      minimum_timer_interval(webkit_glue::kForegroundTabTimerInterval) {
 }
 
 WebPreferences::~WebPreferences() {
@@ -197,4 +198,6 @@
 
   settings->setInteractiveFormValidationEnabled(
       interactive_form_validation_enabled);
+
+  settings->setMinimumTimerInterval(minimum_timer_interval);

[darin (slow to review), 2011/02/17 06:42:32]

here, you can just pass webkit_glue::kForegroundTabTimerInterval

actually, a RenderView starts its life hidden.  maybe you should pass
kBackgroundTabTimerInterval here instead?

[Ken Russell (switch to Gerrit), 2011/02/18 01:05:54]

Using kBackgroundTabTimerInterval seems to work well. Done.

 }