Alternate NTP Mac: Show overlay at fixed position

chrome/browser/ui/cocoa/tab_contents/overlay_separator_view.mm

 // Copyright 2013 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 "chrome/browser/ui/cocoa/tab_contents/overlay_drop_shadow_view.h"
+#import "chrome/browser/ui/cocoa/tab_contents/overlay_separator_view.h"
 
+#import "chrome/browser/ui/cocoa/nsview_additions.h"
 #include "grit/theme_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 
-@implementation OverlayDropShadowView
+@implementation OverlayTopSeparatorView
+
++ (CGFloat)preferredHeight {
+  return 1;
+}
+
+- (void)drawRect:(NSRect)rect {
+  NSRect separatorRect = [self bounds];
+  separatorRect.size.height = [self cr_lineWidth];
+  [[self strokeColor] set];
+  NSRectFillUsingOperation(separatorRect, NSCompositeSourceOver);
+}
+
+@end
+
+@implementation OverlayBottomSeparatorView
 
 + (CGFloat)preferredHeight {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   NSImage* shadowImage =
       rb.GetNativeImageNamed(IDR_OVERLAY_DROP_SHADOW).ToNSImage();
   return [shadowImage size].height;
 }
 
 - (void)drawRect:(NSRect)rect {
   ResourceBundle& rb = ResourceBundle::GetSharedInstance();
   NSRect bounds = [self bounds];
 
   // Draw the shadow.
   NSImage* shadowImage =
       rb.GetNativeImageNamed(IDR_OVERLAY_DROP_SHADOW).ToNSImage();
   [shadowImage drawInRect:bounds
                  fromRect:NSZeroRect
                 operation:NSCompositeSourceOver
                  fraction:1.0];
 }
 
 @end