Revert of [MacViews] Implement size constraints for app windows.

ui/gfx/mac/nswindow_frame_controls.mm

Index: ui/gfx/mac/nswindow_frame_controls.mm
diff --git a/ui/gfx/mac/nswindow_frame_controls.mm b/ui/gfx/mac/nswindow_frame_controls.mm
deleted file mode 100644
index 34f7d266516c823bc53ea6f612eee9dc22446057..0000000000000000000000000000000000000000
--- a/ui/gfx/mac/nswindow_frame_controls.mm
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2015 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.
-
-#import "ui/gfx/mac/nswindow_frame_controls.h"
-
-#import "base/mac/mac_util.h"
-#import "base/mac/sdk_forward_declarations.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace {
-
-// The value used to represent an unbounded width or height.
-const int kUnboundedSize = 0;
-
-void SetResizableStyleMask(NSWindow* window, bool resizable) {
-  NSUInteger style_mask = [window styleMask];
-  if (resizable)
-    style_mask |= NSResizableWindowMask;
-  else
-    style_mask &= ~NSResizableWindowMask;
-  [window setStyleMask:style_mask];
-}
-
-}  // namespace
-
-namespace gfx {
-
-void SetNSWindowCanFullscreen(NSWindow* window, bool allow_fullscreen) {
-  NSWindowCollectionBehavior behavior = [window collectionBehavior];
-  if (allow_fullscreen)
-    behavior |= NSWindowCollectionBehaviorFullScreenPrimary;
-  else
-    behavior &= ~NSWindowCollectionBehaviorFullScreenPrimary;
-  [window setCollectionBehavior:behavior];
-}
-
-void ApplyNSWindowSizeConstraints(NSWindow* window,
-                                  const gfx::Size& min_size,
-                                  const gfx::Size& max_size,
-                                  bool can_resize,
-                                  bool can_fullscreen) {
-  [window setContentMinSize:NSMakeSize(min_size.width(), min_size.height())];
-
-  CGFloat max_width =
-      max_size.width() == kUnboundedSize ? CGFLOAT_MAX : max_size.width();
-  CGFloat max_height =
-      max_size.height() == kUnboundedSize ? CGFLOAT_MAX : max_size.height();
-  [window setContentMaxSize:NSMakeSize(max_width, max_height)];
-
-  SetResizableStyleMask(window, can_resize);
-  [window setShowsResizeIndicator:can_resize];
-
-  // Set the window to participate in Lion Fullscreen mode. Setting this flag
-  // has no effect on Snow Leopard or earlier. UI controls for fullscreen are
-  // only shown for windows that have unbounded size.
-  if (base::mac::IsOSLionOrLater())
-    SetNSWindowCanFullscreen(window, can_fullscreen);
-
-  [[window standardWindowButton:NSWindowZoomButton] setEnabled:can_fullscreen];
-}
-
-}  // namespace gfx