Fix regression I introduced where Stop/Go button would toggle state instantly...

chrome/browser/browser.h

 // Copyright (c) 2006-2009 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.
 
 #ifndef CHROME_BROWSER_BROWSER_H_
 #define CHROME_BROWSER_BROWSER_H_
 
 #include "base/basictypes.h"
 
 #include <set>
@@ skipping 470 matching lines @@
   // Initialize state for all browser commands.
   void InitCommandState();
 
   // Update commands whose state depends on the tab's state.
   void UpdateCommandsForTabState();
 
   // Update commands whose state depends on whether the window is in fullscreen
   // mode.
   void UpdateCommandsForFullscreenMode(bool is_fullscreen);
 
-  // Set the correct stop/go icon and update the Go and Stop command states.
-  // |is_loading| is true if the current TabContents is loading.
-  void UpdateStopGoState(bool is_loading);
+  // Ask the Stop/Go button to change its icon, and update the Go and Stop
+  // command states.  |is_loading| is true if the current TabContents is
+  // loading.  |force| is true if the button should change its icon immediately.
+  void UpdateStopGoState(bool is_loading, bool force);
 
   // UI update coalescing and handling ////////////////////////////////////////
 
   // Asks the toolbar (and as such the location bar) to update its state to
   // reflect the current tab's current URL, security state, etc.
   // If |should_restore_state| is true, we're switching (back?) to this tab and
   // should restore any previous location bar state (such as user editing) as
   // well.
   void UpdateToolbar(bool should_restore_state);
 
@@ skipping 220 matching lines @@
   // The browser idle task helps cleanup unused memory resources when idle.
   scoped_ptr<BrowserIdleTimer> idle_task_;
 
   // Keep track of the encoding auto detect pref.
   BooleanPrefMember encoding_auto_detect_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_H_