Change other usages of .size() to .empty() when applicable.

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/message_loop.h"
@@ skipping 536 matching lines @@
   if (group_ == group_id)
     out->push_back(this);
 
   for (int i = 0, count = child_count(); i < count; ++i)
     GetChildViewAt(i)->GetViewsWithGroup(group_id, out);
 }
 
 View* View::GetSelectedViewForGroup(int group_id) {
   std::vector<View*> views;
   GetWidget()->GetRootView()->GetViewsWithGroup(group_id, &views);
-  if (views.size() > 0)
-    return views[0];
-  else
-    return NULL;
+  return views.empty() ? NULL : views[0];
 }
 
 // Coordinate conversion -------------------------------------------------------
 
 // static
 void View::ConvertPointToView(const View* src,
                               const View* dst,
                               gfx::Point* point) {
   ConvertPointToView(src, dst, point, true);
 }
@@ skipping 1048 matching lines @@
 
   OSExchangeData data;
   WriteDragData(press_pt, &data);
 
   // Message the RootView to do the drag and drop. That way if we're removed
   // the RootView can detect it and avoid calling us back.
   GetWidget()->StartDragForViewFromMouseEvent(this, data, drag_operations);
 }
 
 }  // namespace views