Refactors animation to allow for cleaner subclassing. I'm doing this

chrome/browser/views/frame/browser_view.cc

 // Copyright (c) 2010 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 "chrome/browser/views/frame/browser_view.h"
 
 #if defined(OS_LINUX)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 872 matching lines @@
   browser_.reset();
 }
 
 bool BrowserView::IsBookmarkBarVisible() const {
   return browser_->SupportsWindowFeature(Browser::FEATURE_BOOKMARKBAR) &&
       active_bookmark_bar_ &&
       (active_bookmark_bar_->GetPreferredSize().height() != 0);
 }
 
 bool BrowserView::IsBookmarkBarAnimating() const {
-  if (bookmark_bar_view_.get() &&
-      bookmark_bar_view_->IsAnimating())
-    return true;
-  return false;
+  return bookmark_bar_view_.get() && bookmark_bar_view_->is_animating();
 }
 
 bool BrowserView::IsToolbarVisible() const {
   return browser_->SupportsWindowFeature(Browser::FEATURE_TOOLBAR) ||
          browser_->SupportsWindowFeature(Browser::FEATURE_LOCATIONBAR);
 }
 
 gfx::Rect BrowserView::GetRootWindowResizerRect() const {
   if (frame_->GetWindow()->IsMaximized() || frame_->GetWindow()->IsFullscreen())
     return gfx::Rect();
@@ skipping 1313 matching lines @@
       SetAccessibleName(l10n_util::GetString(IDS_PRODUCT_NAME));
 
   return view;
 }
 #endif
 
 // static
 FindBar* BrowserWindow::CreateFindBar(Browser* browser) {
   return browser::CreateFindBar(static_cast<BrowserView*>(browser->window()));
 }