Move apps::SizeConstraints to extensions

extensions/browser/app_window/size_constraints.cc

 // Copyright 2014 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 "apps/size_constraints.h"
+#include "extensions/browser/app_window/size_constraints.h"
 
 #include <algorithm>
 
 #include "ui/gfx/insets.h"
 
-namespace apps {
+namespace extensions {
 
 SizeConstraints::SizeConstraints()
     : maximum_size_(kUnboundedSize, kUnboundedSize) {}
 
 SizeConstraints::SizeConstraints(const gfx::Size& min_size,
                                  const gfx::Size& max_size)
     : minimum_size_(min_size), maximum_size_(max_size) {}
 
 SizeConstraints::~SizeConstraints() {}
 
@@ skipping 51 matching lines @@
 }
 
 void SizeConstraints::set_minimum_size(const gfx::Size& min_size) {
   minimum_size_ = min_size;
 }
 
 void SizeConstraints::set_maximum_size(const gfx::Size& max_size) {
   maximum_size_ = max_size;
 }
 
-}  // namespace apps
+}  // namespace extensions