Enabling page visibility api in the chrome browser.

content/browser/renderer_host/render_view_host_delegate.h

Index: content/browser/renderer_host/render_view_host_delegate.h
diff --git a/content/browser/renderer_host/render_view_host_delegate.h b/content/browser/renderer_host/render_view_host_delegate.h
index f6ff3655382b6400a3f1f8955f15a7356c5f7280..d2407bcf308bb566012ea7318b1e9627049bd479 100644
--- a/content/browser/renderer_host/render_view_host_delegate.h
+++ b/content/browser/renderer_host/render_view_host_delegate.h
@@ -486,6 +486,9 @@ class RenderViewHostDelegate : public IPC::Channel::Listener {
   bool RequestDesktopNotificationPermission(const GURL& source_origin,
                                             int callback_context);
 
+  // Returns ture iff the render view host is hidden.

[brettw, 2011/05/18 22:11:38]

ture -> true.
iff -> if ("only if" is meaningless in this context and makes it more difficult
to read).

[Shishir, 2011/05/20 03:48:19]

Done.

+  virtual bool IsHidden() const { return false; }
+
  protected:
   virtual ~RenderViewHostDelegate() {}
 };