Convert render thread idle delays from seconds to milliseconds.

content/renderer/render_thread_impl.h

Index: content/renderer/render_thread_impl.h
diff --git a/content/renderer/render_thread_impl.h b/content/renderer/render_thread_impl.h
index 32e92dfdb4ff5d03f8d3306148c3035673a3a3c2..e3fdac37a5c6174232a56b006338176ff29e7f88 100644
--- a/content/renderer/render_thread_impl.h
+++ b/content/renderer/render_thread_impl.h
@@ -108,11 +108,11 @@ class CONTENT_EXPORT RenderThreadImpl : public content::RenderThread,
   virtual void RegisterExtension(v8::Extension* extension) OVERRIDE;
   virtual bool IsRegisteredExtension(
       const std::string& v8_extension_name) const OVERRIDE;
-  virtual void ScheduleIdleHandler(double initial_delay_s) OVERRIDE;
+  virtual void ScheduleIdleHandler(int64 initial_delay_ms) OVERRIDE;
   virtual void IdleHandler() OVERRIDE;
-  virtual double GetIdleNotificationDelayInS() const OVERRIDE;
-  virtual void SetIdleNotificationDelayInS(
-      double idle_notification_delay_in_s) OVERRIDE;
+  virtual int64 GetIdleNotificationDelayInMs() const OVERRIDE;
+  virtual void SetIdleNotificationDelayInMs(
+      int64 idle_notification_delay_in_ms) OVERRIDE;
 #if defined(OS_WIN)
   virtual void PreCacheFont(const LOGFONT& log_font) OVERRIDE;
   virtual void ReleaseCachedFonts() OVERRIDE;
@@ -216,7 +216,7 @@ class CONTENT_EXPORT RenderThreadImpl : public content::RenderThread,
   int hidden_widget_count_;
 
   // The current value of the idle notification timer delay.
-  double idle_notification_delay_in_s_;
+  int64 idle_notification_delay_in_ms_;
 
   bool suspend_webkit_shared_timer_;
   bool notify_webkit_of_modal_loop_;