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

chrome/browser/ui/views/apps/native_app_window_frame_view_mac.mm

-// 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.
-
-#include "chrome/browser/ui/views/apps/native_app_window_frame_view_mac.h"
-
-#import <Cocoa/Cocoa.h>
-
-#import "ui/gfx/mac/coordinate_conversion.h"
-#include "ui/views/widget/widget.h"
-
-NativeAppWindowFrameViewMac::NativeAppWindowFrameViewMac(views::Widget* frame)
-    : views::NativeFrameView(frame) {
-}
-
-NativeAppWindowFrameViewMac::~NativeAppWindowFrameViewMac() {
-}
-
-gfx::Rect NativeAppWindowFrameViewMac::GetWindowBoundsForClientBounds(
-    const gfx::Rect& client_bounds) const {
-  NSWindow* ns_window = GetWidget()->GetNativeWindow();
-  gfx::Rect window_bounds = gfx::ScreenRectFromNSRect([ns_window
-      frameRectForContentRect:gfx::ScreenRectToNSRect(client_bounds)]);
-  // Enforce minimum size (1, 1) in case that |client_bounds| is passed with
-  // empty size.
-  if (window_bounds.IsEmpty())
-    window_bounds.set_size(gfx::Size(1, 1));
-  return window_bounds;
-}