Fixed Task Manager FPS so that it shows 0 instead of 60 for background pages.

content/renderer/render_widget.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_widget.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 56 matching lines @@
 using WebKit::WebWidget;
 using content::RenderThread;
 
 RenderWidget::RenderWidget(WebKit::WebPopupType popup_type)
     : routing_id_(MSG_ROUTING_NONE),
       webwidget_(NULL),
       opener_id_(MSG_ROUTING_NONE),
       host_window_(0),
       current_paint_buf_(NULL),
       next_paint_flags_(0),
-      filtered_time_per_frame_(1.0f/60.0f),
+      filtered_time_per_frame_(0.0f),
       update_reply_pending_(false),
       using_asynchronous_swapbuffers_(false),
       num_swapbuffers_complete_pending_(0),
       did_show_(false),
       is_hidden_(false),
       is_fullscreen_(false),
       needs_repainting_on_restore_(false),
       has_focus_(false),
       handling_input_event_(false),
       closing_(false),
@@ skipping 1411 matching lines @@
   }
 }
 
 bool RenderWidget::WillHandleMouseEvent(const WebKit::WebMouseEvent& event) {
   return false;
 }
 
 bool RenderWidget::WebWidgetHandlesCompositorScheduling() const {
   return false;
 }