views: Use child_count() instead of static_cast<int>(...).

views/view.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 "views/view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 1741 matching lines @@
       accelerators_->clear();
       accelerators_.reset();
     }
     registered_accelerator_count_ = 0;
   }
 }
 
 // Focus -----------------------------------------------------------------------
 
 void View::InitFocusSiblings(View* v, int index) {
-  int child_count = static_cast<int>(children_.size());
+  int child_count = child_count();
 
   if (child_count == 0) {
     v->next_focusable_view_ = NULL;
     v->previous_focusable_view_ = NULL;
   } else {
     if (index == child_count) {
       // We are inserting at the end, but the end of the child list may not be
       // the last focusable element. Let's try to find an element with no next
       // focusable element to link to.
       View* last_focusable_view = NULL;
@@ skipping 122 matching lines @@
     result.append(GetChildViewAt(i)->PrintViewGraph(false));
 
   if (first)
     result.append("}\n");
 
   return result;
 }
 #endif
 
 }  // namespace views