Update the metrics side bar pane and computed style pane after main frame resize.

Source/core/inspector/InspectorPageAgent.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 982 matching lines @@
 void InspectorPageAgent::didScroll()
 {
     if (m_enabled)
         m_overlay->update();
 }
 
 void InspectorPageAgent::didResizeMainFrame()
 {
     if (m_enabled && m_state->getBoolean(PageAgentState::showSizeOnResize))
         m_overlay->showAndHideViewSize(m_state->getBoolean(PageAgentState::showGridOnResize));
+    m_frontend->frameResized();
 }
 
 void InspectorPageAgent::didRecalculateStyle()
 {
     if (m_enabled)
         m_overlay->update();
 }
 
 void InspectorPageAgent::scriptsEnabled(bool isEnabled)
 {
@@ skipping 229 matching lines @@
 }
 
 void InspectorPageAgent::setShowViewportSizeOnResize(ErrorString*, bool show, const bool* showGrid)
 {
     m_state->setBoolean(PageAgentState::showSizeOnResize, show);
     m_state->setBoolean(PageAgentState::showGridOnResize, showGrid && *showGrid);
 }
 
 } // namespace WebCore